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Online since: December 2012
Authors: Yun Zhang, Xin Ke, Ying Sun
Zeolite is a frame-like structure, moisture content of aluminum silicate minerals, with a porous structure, adsorption and ion exchange[6].
Zeolite which contains a lot of three-dimensional crystal structure, a unique molecular structure and strong ion-exchange capacity reduce the leaching of heavy metal Cr in the soil by ion exchange adsorption.
Zeolite contents a lot of three-dimensional crystal structure have a unique molecular structure and strong ion exchange capacity, adsorption of Cr (VI) or converted to Cr (III), thereby reducing the bioavailability of Cr.
Analytical Chemistry, 1979, 51(7): 844-851
Zeolite which contains a lot of three-dimensional crystal structure, a unique molecular structure and strong ion-exchange capacity reduce the leaching of heavy metal Cr in the soil by ion exchange adsorption.
Zeolite contents a lot of three-dimensional crystal structure have a unique molecular structure and strong ion exchange capacity, adsorption of Cr (VI) or converted to Cr (III), thereby reducing the bioavailability of Cr.
Analytical Chemistry, 1979, 51(7): 844-851
Online since: June 2017
Authors: Jing Zhu, Jun Rong Yu, Zu Ming Hu, Jing Li, Guo Cheng Song, Yan Wang
The morphologies and structures of the obtained PAA and PI nanofiber membrane were examined by SEM and FT-IR.
The morphology of PI nanofiber was carried out by SEM, the structures and thermal stability of the PAA and PI nanofiber membrane were studied.
FT-IR spectra are used to investigate the chemical structures of PAA (a) and PI nanofiber membrane at different thermal imdization temperature at 250°C (b), 280°C (c), 310°C (d) and 340°C (e).
Zhang, Structures and properties of polyimide fibers containing ether units, Journal of Materials Science 50 (2015) 4104-4114
Xu, Performance evaluation of electrospun polyimide non-woven separators for high power lithium-ion batteries, Journal of Electroanalytical Chemistry 767 (2016) 34-39.
The morphology of PI nanofiber was carried out by SEM, the structures and thermal stability of the PAA and PI nanofiber membrane were studied.
FT-IR spectra are used to investigate the chemical structures of PAA (a) and PI nanofiber membrane at different thermal imdization temperature at 250°C (b), 280°C (c), 310°C (d) and 340°C (e).
Zhang, Structures and properties of polyimide fibers containing ether units, Journal of Materials Science 50 (2015) 4104-4114
Xu, Performance evaluation of electrospun polyimide non-woven separators for high power lithium-ion batteries, Journal of Electroanalytical Chemistry 767 (2016) 34-39.
Online since: October 2011
Authors: Yao Wang Li, Bo Li
However, building sound models requires suitable parameters related with chemical structures.
Amino acid descriptors are often used to describe the structures of peptides.
Leo, Exploring QSAR: fundamentals and application in chemistry and biology.
Sneath, "Relations between chemical structure and biological activity in peptides," J.
Li-Chan, "Quantitative Structure−Activity Relationship Study of Bitter Peptides," J.
Amino acid descriptors are often used to describe the structures of peptides.
Leo, Exploring QSAR: fundamentals and application in chemistry and biology.
Sneath, "Relations between chemical structure and biological activity in peptides," J.
Li-Chan, "Quantitative Structure−Activity Relationship Study of Bitter Peptides," J.
Online since: October 2019
Authors: Phimchanok Jaturapiree, Pipat Sudying, Nuchanat Laingaumnuay
In addition, the structure and properties of BC were determined using SEM, FTIR, DSC and XRD.
In addition, this study determined the structure and properties of these BC.
Overall, the fermentation of rice washing showed a small influence on BC structure as indicated by DSC, FTIR, and XRD technique.
Brown, Cellulose structure and biosynthesis: What is in store for the 21st century, J.
Bacterial cellulose production by Komagataeibacter nataicola using water from washing rice as substrate and optimization of culture conditions Paper presented at the Pure and Applied Chemistry International Conference 2018 (PACCON 2018), Thailand
In addition, this study determined the structure and properties of these BC.
Overall, the fermentation of rice washing showed a small influence on BC structure as indicated by DSC, FTIR, and XRD technique.
Brown, Cellulose structure and biosynthesis: What is in store for the 21st century, J.
Bacterial cellulose production by Komagataeibacter nataicola using water from washing rice as substrate and optimization of culture conditions Paper presented at the Pure and Applied Chemistry International Conference 2018 (PACCON 2018), Thailand
Online since: March 2026
Authors: Yu Xiu An, Shao Cong Pang
Zeta potential, particle size analysis, and SEM images showed that the effect resulted from the improved colloidal stability, closer packing of the particles, and the formation of a dense filter cake structure.
The rigid cyclic structure of NVP can resist molecular chain breakage at high temperature and significantly enhance the thermodynamic stability of the system at 180 ℃ and above[10].
This molecular design strategy enables the synthesized polymers to synergistically achieve filter cake pore structure modulation and long-lasting stability in high temperature environments[11].
In this study, we systematically analyze the interfacial regulation mechanism by comparing the fluid loss reduction performance and the evolution of filter cake structure of four types of nanoparticles, namely, hydrophilic SiO2, hydrophobic SiO2, CaCO3, and TiO2, to provide a theoretical basis for the rational design of nanomaterials in drilling fluids[17].
Oilfield Chemistry 39 (2022), p. 202-208
The rigid cyclic structure of NVP can resist molecular chain breakage at high temperature and significantly enhance the thermodynamic stability of the system at 180 ℃ and above[10].
This molecular design strategy enables the synthesized polymers to synergistically achieve filter cake pore structure modulation and long-lasting stability in high temperature environments[11].
In this study, we systematically analyze the interfacial regulation mechanism by comparing the fluid loss reduction performance and the evolution of filter cake structure of four types of nanoparticles, namely, hydrophilic SiO2, hydrophobic SiO2, CaCO3, and TiO2, to provide a theoretical basis for the rational design of nanomaterials in drilling fluids[17].
Oilfield Chemistry 39 (2022), p. 202-208
Online since: July 2014
Authors: S.J. Dhoble, N. Thejokalyani
Polymers cannot be deposited by this technique because their structure leads to high conductance.
References [1] http://www2.chemistry.msu.edu/faculty/reusch/virttxtjml/spectrpy/uv-vis/spectrum.htm [2] N.
[44] Information available at GA Tech Chemistry, Frontier Orbitals, 1999, pp. 2- 67
Sharpe, Inorganic Chemistry (3rd ed.), Prentice Hall, 2008, p. 541
Organo-metallic Chemistry 753 (2014) 55-62
References [1] http://www2.chemistry.msu.edu/faculty/reusch/virttxtjml/spectrpy/uv-vis/spectrum.htm [2] N.
[44] Information available at GA Tech Chemistry, Frontier Orbitals, 1999, pp. 2- 67
Sharpe, Inorganic Chemistry (3rd ed.), Prentice Hall, 2008, p. 541
Organo-metallic Chemistry 753 (2014) 55-62
Online since: January 2011
Authors: Yu Ying Li, Bing Li
Study on fungi-bacteria consortium bioremediation of petroleum contaminated mangrove sediments amended with mixed biosurfactants
Li Yuyinga, Li Bingb
School of Chemistry and Environmental Engineering, Wuyi University, Jiangmen, China
aemail: liliyuying@163.com; bemail: wyuchemlb@126.com
Keywords: petroleum; bioremediation; biosurfactant; mangrove sediments
Abstract.
This was because of the amphipathic nature of surfactant and surfactants are known to alter the structure and function of the cellular membrane, induce cellular lysis and alter the structure and functions of important bacterial enzymes (Goncalves et al., 2003;).
This was because of the amphipathic nature of surfactant and surfactants are known to alter the structure and function of the cellular membrane, induce cellular lysis and alter the structure and functions of important bacterial enzymes (Goncalves et al., 2003;).
Online since: July 2012
Authors: Zhou Fang, Li Na Zhang
Development of Standard Part Library Based on SolidWorks
Fang Zhou 1, a, Zhang Li-Na 2,b
1 School of Mechatronic Engineering, Xi’an Technological University, Xi’an, China
2 Xi’an Modern Chemistry Research Institute, Xi’an, China
aphoenix20030696@qq.com, b502991275@qq.com
Keywords: SolidWorks; standard part; development; parametric modeling; program-driven method
Abstract.
But, in practice, the topological structure of parts is not easy to grasp so that the reconfiguration of parts is always breakdown.
This method does not have to understand the topological structure of parts that could simplify the process of development.
But, in practice, the topological structure of parts is not easy to grasp so that the reconfiguration of parts is always breakdown.
This method does not have to understand the topological structure of parts that could simplify the process of development.
Online since: May 2010
Authors: Romeo Cristian Ciobanu, Cristina Schreiner
This aspect was proven to be reproducible in a more
general matter, for a wide range of dielectric structures and technologies analysed elsewhere by
authors, even under different stress parameters or related to other physical or chemical features.
That is why new studies of PD phenomena are needed in future, in order to understand more accurately the intimate pre-breakdown processes and failure of dielectric structures
Poppel, in: A theoretical approach to the P.D. phenomena in composite dielectrics, Cellulose Chemistry and Technology.
That is why new studies of PD phenomena are needed in future, in order to understand more accurately the intimate pre-breakdown processes and failure of dielectric structures
Poppel, in: A theoretical approach to the P.D. phenomena in composite dielectrics, Cellulose Chemistry and Technology.
Online since: October 2010
Authors: Jie Xiu Wang, Feng Zhao
Synthesis, Characterization and Photophysical Properties of Thiophene-containing Chloro Re() Complex
Jiexiu Wang1,a and Feng Zhao1,b,*
1Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science &Technology
Normal University, Fenglin Street Nanchang,Jiangxi 330013, China.
Compared with the π-electron density of carbocyclic benzene (unity on each ring atom), the π-electron density on each ring atom of thiophene is greater than unity since there are six electrons distributed over five atoms, forming a π-electron excessive heterocyclic structure.
From this point of view, it is of interest to synthesize novel Re (I) complexes with heterocyclic structures and to investigate their photoluminescent properties.
Compared with the π-electron density of carbocyclic benzene (unity on each ring atom), the π-electron density on each ring atom of thiophene is greater than unity since there are six electrons distributed over five atoms, forming a π-electron excessive heterocyclic structure.
From this point of view, it is of interest to synthesize novel Re (I) complexes with heterocyclic structures and to investigate their photoluminescent properties.