STUDY ON EROSION AND SUCTION CONTROL AGAINST OVERTOPPING OF RIVER LEVEE USING CRUSHED SHELL PARTICLES

2021 ◽  
Vol 77 (2) ◽  
pp. I_373-I_378
Author(s):  
Asuka OHNO ◽  
Kaoru KOBAYASHI ◽  
Shigeru OHWADA ◽  
Noriyuki KAMADO ◽  
Kazuya YASUHARA
Keyword(s):  
Suction Control ◽  
Shell Particles

Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spinel Ferrite ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
Cofe2o4 Nanoparticles ◽  
Core Diameter ◽  
The Core ◽  
Shell Particles ◽  
Interface Parameters ◽  
Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

scholarly journals Improving the mechanical properties of polypropylene composites with coconut shell particles

2021 ◽  
Vol 30 ◽  
pp. 263498332110074
Author(s):  
Henry C Obasi ◽  
Uchechi C Mark ◽  
Udochukwu Mark
Keyword(s):  
Mechanical Properties ◽  
Particle Size ◽  
Flexural Modulus ◽  
Filler Particle ◽  
Tensile Modulus ◽  
Coconut Shell ◽  
Polypropylene Composites ◽  
Increase With Increase ◽  
Pp Composites ◽  
Shell Particles

Conventional inorganic fillers are widely used as fillers for polymer-based composites. Though, their processing difficulties and cost have demanded the quest for credible alternatives of organic origin like coconut shell fillers. Dried shells of coconut were burnt, ground, and sifted to sizes of 63, 150, 300, and 425 µm. The ground coconut shell particles (CSP) were used as a filler to prepare polypropylene (PP) composites at filler contents of 0% to 40% via injection melt blending process to produce PP composite sheets. The effect of the filler particle size on the mechanical properties was investigated. The decrease in the size of filler (CSP) was found to improve the yield strength, tensile strength, tensile modulus, flexural strength, flexural modulus, and hardness of PP by 8.5 MPa, 15.75 MPa, 1.72 GPa, 7.5 MPa, 100 MPa, and 10.5 HR for 63 µm at 40%, respectively. However, the elongation at break and modulus of resilience of the PP composites were seen to increase with increase in the filler size. Scanning electron microscope analysis showed that fillers with 63 µm particle size had the best distribution and interaction with the PP matrix resulting in enhanced properties.

Using seafood waste as sludge conditioners

2001 ◽  
Vol 44 (10) ◽  
pp. 301-307 ◽  
Author(s):  
D.Y. Lee ◽  
S.R. Jing ◽  
Y.F. Lin
Keyword(s):  
Ferric Chloride ◽  
Specific Resistance ◽  
Oyster Shell ◽  
Particle Sizes ◽  
Sludge Dewatering ◽  
Insignificant Effect ◽  
Shrimp Shell ◽  
Ph Decrease ◽  
Shell Particles ◽  
Bone Particles

In this study, three kinds of seafood wastes (shrimp shell particles, oyster shell particles, and internal bone particles of squid) were added to dewatered sludge preconditioned with chemical conditioner (alum or ferric chloride). The specific resistance of sludge dewatering was calculated to evaluate the effectiveness of sludge dewatering. The result showed that adding chemical conditioners alone caused noticeable pH decrease and resulted in a conditioned sludge with poor filterability. The addition of oyster shell or internal bone of squid to chemically preconditioned sludge efficiently improved sludge dewatering. This result was possibly due to both the availability of alkaline and the function as skeleton builder provided by these two waste solids. Particle sizes (0.59-2.0 mm) of oyster shell and internal bone of squid were found to have insignificant effect on sludge dewatering.

Titanium Dioxide−Polymer Core–Shell Particles Dispersions as Electronic Inks for Electrophoretic Displays

2008 ◽  
Vol 20 (4) ◽  
pp. 1292-1298 ◽  
Author(s):  
M. P. L. Werts ◽  
M. Badila ◽  
C. Brochon ◽  
A. Hébraud ◽  
G. Hadziioannou
Keyword(s):  
Titanium Dioxide ◽  
Core Shell ◽  
Shell Particles

From Ab Initio Calculations to Multiscale Design of Si/C Core–Shell Particles for Li-Ion Anodes

Nano Letters ◽  
2014 ◽  
Vol 14 (4) ◽  
pp. 2140-2149 ◽  
Author(s):  
Maria E. Stournara ◽  
Yue Qi ◽  
Vivek B. Shenoy
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Core Shell ◽  
Li Ion ◽  
Shell Particles

Development of magnetic ytterbium oxide core–shell particles for selectively trapping phosphopeptides

2016 ◽  
Vol 8 (15) ◽  
pp. 3061-3068 ◽  
Author(s):  
Christina Meisenbichler ◽  
Julia S. Rauch ◽  
Yüksel Güzel ◽  
Eva-Maria Wernig ◽  
Dieter Schemeth ◽  
...  
Keyword(s):  
Core Shell ◽  
Ytterbium Oxide ◽  
Selective Enrichment ◽  
Phosphorylated Peptides ◽  
Shell Particles

Selective enrichment of phosphorylated peptides by magnetic ytterbium oxide core-shell particles.

One-pot synthesis of the macroporous polyaniline microspheres and Ag/polyaniline core-shell particles

2005 ◽  
Vol 84 (1-3) ◽  
pp. 254-260 ◽  
Author(s):  
Jimin Du ◽  
Zhimin Liu ◽  
Buxing Han ◽  
Zhonghao Li ◽  
Jianling Zhang ◽  
...  
Keyword(s):  
Core Shell ◽  
One Pot ◽  
One Pot Synthesis ◽  
Shell Particles

scholarly journals Synthesis of CaCO3@C yolk–shell particles for CO2 adsorption

RSC Advances ◽  
2015 ◽  
Vol 5 (32) ◽  
pp. 24872-24876 ◽  
Author(s):  
Yash Boyjoo ◽  
Kelly Merigot ◽  
Jean-François Lamonier ◽  
Vishnu K. Pareek ◽  
Moses O. Tade ◽  
...  
Keyword(s):  
Co2 Adsorption ◽  
Shell Particles

This paper reports the first example of the synthesis of CaCO3@C yolk–shell particles and their application in CO2 adsorption.

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