Results 21 to 30 of about 2,058,333 (293)

Study on Utilization of Carboxyl Group Decorated Carbon Nanotubes and Carbonation Reaction for Improving Strengths and Microstructures of Cement Paste

open access: yesNanomaterials, 2016
Carbon nanotubes (CNTs) have excellent mechanical properties and can be used to reinforce cement-based materials. On the other hand, the reaction product of carbonation with hydroxides in hydrated cement paste can reduce the porosity of cement-based ...
Xiantong Yan   +4 more
doaj   +1 more source

Rheology of Aqueous Dispersions of Hydrogenated Castor Oil

open access: yesApplied Rheology, 2013
Three major hydrogenated castor oil crystal morphologies have been observed: fiber, rosette and irregular crystal. Due to the difficulty in obtaining samples with a single crystal morphology, rheological studies of suspensions containing mixtures of the ...
Yang Dingzheng, Hrymak Andrew N.
doaj   +1 more source

Influence of morphological variations on the AC breakdown of XLPE insulation in submarine cable factory joints

open access: yesHigh Voltage, 2019
Extruded crosslinked polyethylene (XLPE) submarine cables with factory joints play a significant role in cross-sea transmission interconnection projects.
Zhenpeng Zhang   +7 more
doaj   +1 more source

What makes a crystal structure report valid? [PDF]

open access: yes, 2018
Single crystal X-ray crystallography has developed into a unique, highly automated and accessible tool to obtain detailed information on molecular structures.
Sub Crystal and Structural Chemistry   +2 more
core   +1 more source

Temperature Effect on Hydroxyapatite Preparation by Co-precipitation Method under Carbamide Influence

open access: yesMATEC Web of Conferences, 2015
Hydroxyapatite crystal was prepared by homogeneous co-precipitation method using a mixture of Calcium nitrate and diammonium phosphate as raw materials and carbamide as the buffering agent.
Luo Jing   +4 more
doaj   +1 more source

Phase Stability and Morphology of Gel Grown Crystals: The Case of CdCl2-bpp Polymeric System

open access: yesCrystals, 2019
A phenomenological study is carried out on a complex two-component diffusion-reacting system in gel, that is, the Cd-1,3-bis(4-pyridyl)propane (Cd-bpp) coordination polymer.
Leonardo Lo Presti   +2 more
doaj   +1 more source

Liquid crystal seed nucleates liquid–solid phase change in ceria nanoparticles [PDF]

open access: yes, 2015
Molecular dynamics (MD) simulation was used to explore the liquid–solid (crystal) phase change of a ceria nanoparticle. The simulations reveal that the crystalline seed, which spontaneously evolves and nucleates crystallisation, is a liquid rather than
Sayle, D.C.   +2 more
core   +1 more source

Structural and Optical Properties of Silicon Carbide Powders Synthesized from Organosilane Using High-Temperature High-Pressure Method

open access: yesNanomaterials, 2021
The development of new strategies for the mass synthesis of SiC nanocrystals with high structure perfection and narrow particle size distribution remains in demand for high-tech applications.
Evgeny A. Ekimov   +9 more
doaj   +1 more source

Microbial Induced Carbonate Precipitation Using a Native Inland Bacterium for Beach Sand Stabilization in Nearshore Areas

open access: yesApplied Sciences, 2019
Microbial Induced Carbonate Precipitation (MICP) via urea hydrolysis is an emerging sustainable technology that provides solutions for numerous environmental and engineering problems in a vast range of disciplines.
Pahala Ge Nishadi Nayanthara   +3 more
doaj   +1 more source

Reversed Crystal Growth

open access: yesCrystals, 2018
In the last decade, a reversed growth route has been found in many crystal growth processes. In these systems, a single crystal does not develop from a single nucleus.
Wuzong Zhou
doaj   +1 more source

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