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Online since: May 2015
Authors: Nona Merry Merpati Mitan, Akmal Hakim Azmi, Sian Meng Se, M.N. Nur Fathiah
The main aim of the present research is to improve the structure of the briquette and to observe basic fuel properties of durian peels in the presence of calcium hydroxide.
Hameed, Textural porosity, surface chemistry and adsorptive properties of durian shell derived activated carbon prepared by microwave assisted sodium hydroxide activation, Chem.
Online since: November 2013
Authors: Jing Xu, Zhi Liang Jin
It was showed that obtained powders had the same structure as purchased.
B, 105, 2815-2819, 2001 [8] Bashir S., Zhang H., Guo J., Liu J., “Green Chemistry Derived Metal-modified Titania used for Dye-sensitized Solar Cell”, TechConnect World Conference and Expo, Santa Clara, California, June 18-21, 2012.
Online since: May 2013
Authors: Yan Yan Wu, Lai Hao Li, Xian Qing Yang, Shu Xian Hao, Jian Chao Deng, Bo Qi, Su Ping Lu
From 200 mg of crude extract, 2.5 mg of trans-resveratrol was obtained at over 99% purity by HPLC analyses, and its chemical structure was identified by ESI-MS, 1H NMR.
The MAS-II microwave oven (2450MHz, Sineo Microwave Chemistry Technology Company, Shanghai, China) with is an open microwave solvent extraction system equipped with a temperature and power feedback/control.
Online since: March 2013
Authors: Badekai Ramachandra Bhat, R. Ravindra
Mass production of carbon nanofibers on water soluble support Ravindra Ra and Badekai Ramachandra Bhatb Catalysis and Materials Laboratory, Department of Chemistry, National Institute of Technology Karnataka, Mangalore-575 025, India aravi5res@gmail.com and bchandpoorna@yahoo.com (corresponding author) Keywords: Carbon nanofibers; Water soluble support; Mass production.
The structure of the products was characterized by scanning electron microscopy, transmission electron microscopy, Raman spectroscopy and X-ray diffraction method.
Online since: September 2007
Authors: Hirotaro Mori, Jung Goo Lee
The size of the particles increased by the germanium deposition as shown in figure 1 (b) and the Debye-Scherrer rings in the SAED (figure 1 (b')) can be consistently indexed as those of gold with the fcc structure superimposed with those of germanium with the diamond cubic structure.
The gold particles in figure 2 (a) have diameter of 5 nm on average and the fcc structure.
Although weak Debye-Scherrer rings which can be indexed as those of a crystal with the face-centered cubic (fcc) structure appeared, strong halos remained at RT.
Namely, granular contrast (often called as the "salt-pepper contrast") characteristic of an amorphous structure, can be seen in the particle.
Alcock, Materials Thermo-Chemistry (Pergamon Press, 6th ed., 1993)
Online since: May 2019
Authors: Patricie Heinrichova, Martin Vala, Martin Weiter, Matouš Kratochvíl
A considerably high two-photon absorption cross-section in order of 1000 GM was found for non-symmetrically substituted derivative with donor-acceptor structure.
The chemical structure of the materials under study.
Mahrt, Two-photon pumped lasing from a two-dimensional photonic bandgap structure with polymeric gain material, Adv.
Stability and physical structure tests of piperidyl and morpholinyl derivatives of diphenyl-diketo-pyrrolopyrroles (DPP), JTAC 108 (2012) 467-473
Structure-property relationship, Chem.
Online since: May 2011
Authors: Hui Ren Hu, Zhao Yang Yuan, Yang Bing Wen
The structure of the resulting product was characterized by FT-IR, 1H-NMR.
Due to their special structure, they possess lower solution viscosity and it is convenient for their application.
The polymer structure was determined spectrally by FT-IR(BRUKER VECTOR22) and 1H-NMR(Varian mercury-plus 400).
This is certainly due to the molecular structure and aldehyde groups that enhanced the adhesive strength between fibers.
Mark, in: Contemporary Polymer Chemistry, edited by Oxford University Press, New York (1999), in press [6] Cornel Hagiopol, Yuping Luo, David F.
Online since: May 2023
Authors: Alaa Mohammed Hussein Wais, Abdul Raheem Abid Ali
A peak in XRD for Ni-B electroless coating in Figure 4, which shows an amorphous structure.
Figure 5a show structure of (Ni-B) coating was a cauliflower type [30-23].
It should be noted that heat treatment along with the growth of nodules produce a coarse-grained structure [33,34].
Acknowledgement The authors hereby acknowledge support from academic stuffs and support stuffs and I would like to thank the staff of chemistry lab. in Al-Mustaqbal University College, Iraq.
Kondoh, “Friction behavior of network-structured CNT coating on pure titanium plate,” Appl.
Online since: June 2005
Authors: S.Y. Chun, Sang Jin Lee, Chung Hyo Lee
In addtion, porous structure of powders are introduced by control of heating rate during calcination process.
And the more PVA polymer content made the more extensive voids in the powder structure during calcination process.
It means that the thermal decomposition of organic substance occurred more extensively in the precursor and it resulted in more porous powder structure.
The explosive exothermic reaction by the fast heating schedule resulted in porous structure by volume expansion.
Wenk: Better Ceramics Through Chemistry I, (Materials Research Society, Pittsburgh, PA, 1984)
Online since: December 2019
Authors: E.N. Khakhaleva, Shark M. Rakhimbaev, D.A. Tolypin, Natalia M. Tolypina
One of the most important elements of the primary protection of concrete structures against chemical aggression is the correct choice of the type of cement.
This conclusion is fully consistent with the practice of successful application of pozzolanic, ash cements, slag Portland cement and other low-base cements in the construction of underground structures, dams, elements of hydroelectric power plants and other hydraulic structures [7].
According to the general provisions of the physical chemistry of multiphase phenomena, the kinetics of corrosion is under kinetic and diffusion control.
Rosenthal, Corrosion resistance of structures in aggressive industry, Stroyizdat, Moscow, 1976.
Babushkin, Protection of building structures, Vishcha school, Kharkov, 1989.