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Online since: October 2014
Authors: Vizy Nazira Riazuddin, Kamarul Arifin Ahmad, Mohamed Zubair
Rates of volatilization and vapor pressure influence the deposition of semi-volatile products of heterogeneous O3 chemistry (e.g., formaldehyde) [15-16].
Haghighat, Aircraft Cabin Indoor Air Environment Requirements, Environmental Chemistry.
Ahmad, V.R.Rao, Study of the influence of Normal and High Blood pressure on normal and stenosed Carotid Bifurcation using Fluid-Structure Interaction, Applied Mechanics and Materials, 315(2013)982-986
Haghighat, Aircraft Cabin Indoor Air Environment Requirements, Environmental Chemistry.
Ahmad, V.R.Rao, Study of the influence of Normal and High Blood pressure on normal and stenosed Carotid Bifurcation using Fluid-Structure Interaction, Applied Mechanics and Materials, 315(2013)982-986
Online since: March 2020
Authors: Masaaki Suzuki, Sameh Hassan, Shinsuke Mori, Ahmed Abd El-Moneim
The FTIR analysis reflects the formation of a MnO2/rGO composite film structure.
In this context, electrochemical deposition technique was proven to be an effective method to prepare MnO2 nanostructures [3-6], as this technique has the advantage of controlling the morphology, mass and thickness of the film simply by adjusting the current and, bath chemistry, and temperature.
This reflects the formation of MnO2/rGO hybrid structure.
This implies the formation of hybrid nanocomposite structure.
Periodic structures.
In this context, electrochemical deposition technique was proven to be an effective method to prepare MnO2 nanostructures [3-6], as this technique has the advantage of controlling the morphology, mass and thickness of the film simply by adjusting the current and, bath chemistry, and temperature.
This reflects the formation of MnO2/rGO hybrid structure.
This implies the formation of hybrid nanocomposite structure.
Periodic structures.
Online since: October 2021
Authors: Klára Křížová, Martin Ťažký
Again, this additive is used for the design of an optimal granulometric curve of the whole composite but, thanks to its chemistry, it also helps to further cure of the composite structure, mainly due to the production of CSH and CAH gels.
Construction of an Ultra-High-Performance Fibre-Reinforced Concrete thin-shell structure over the Millau Viaduct toll gates.
Concrete Structures. 2004, 236-237
Construction of the new Troja bridge with focus on concrete structures.
Construction of an Ultra-High-Performance Fibre-Reinforced Concrete thin-shell structure over the Millau Viaduct toll gates.
Concrete Structures. 2004, 236-237
Construction of the new Troja bridge with focus on concrete structures.
Online since: April 2016
Authors: Sung Hoon Kim, Jae Kyung Lee
Effect of the SF6 Flow Injection Time on the Formation of the Carbon Coils
Jae-Kyung Lee1 and Sung-Hoon Kim1,a*
Department of Engineering in Energy & Applied Chemistry, Silla University, Busan 617-736, Republic of Korea
ashkim@silla.ac.kr
Keywords: Linear type carbon microcoils, Geometry control, Manipulation of SF6 incorporation time, Thermal chemical vapor deposition.
The combined results of Figs. 2 ~ 5 inform that sample C has the most developed morphology for CMCs structure.
Growth pattern II (SF6 gas flow injection time increased from 5 min up to 60 min): the developed carbon coils, especially well-structured CMCs, could be etched away by fluorine’s etching role on CMCs.
After 5 min initial deposition stage, however, the increased fluorine species may etch away the well-structured CMCs (linear type and/or wave-like type).
At longer SF6 gas flow injection time (60 min), the secondary nucleation for L-CNFs may be facilitated onto previously formed WCNCs structure via fluorine’s etching and/or sulfur’s coil formation role.
The combined results of Figs. 2 ~ 5 inform that sample C has the most developed morphology for CMCs structure.
Growth pattern II (SF6 gas flow injection time increased from 5 min up to 60 min): the developed carbon coils, especially well-structured CMCs, could be etched away by fluorine’s etching role on CMCs.
After 5 min initial deposition stage, however, the increased fluorine species may etch away the well-structured CMCs (linear type and/or wave-like type).
At longer SF6 gas flow injection time (60 min), the secondary nucleation for L-CNFs may be facilitated onto previously formed WCNCs structure via fluorine’s etching and/or sulfur’s coil formation role.
Online since: February 2022
Authors: Guo Feng Xu
Meanwhile, the effects of crystal structure, including crystallinity, ion distribution and impurity defects on ionic transport are studied.
Crystal structure.
The crystal structure of the lithium-indium chloride samples obtained at both 100 Pa vacuum and 50 Pa vacuum can be indexed to the C2/m space group of the face-centered cubic lattice system [14], as is demonstrated in Fig. 1.
It indicates that lithium-indium chloride solid state electrolyte material with stable InCl63- regular octahedron structure for rapid migration of lithium ions has been successfully prepared.
Wang, Lithium battery chemistries enabled by solid-state electrolytes, Nat.
Crystal structure.
The crystal structure of the lithium-indium chloride samples obtained at both 100 Pa vacuum and 50 Pa vacuum can be indexed to the C2/m space group of the face-centered cubic lattice system [14], as is demonstrated in Fig. 1.
It indicates that lithium-indium chloride solid state electrolyte material with stable InCl63- regular octahedron structure for rapid migration of lithium ions has been successfully prepared.
Wang, Lithium battery chemistries enabled by solid-state electrolytes, Nat.
Online since: July 2012
Authors: Antonio G. Ferreira, Adriano Alves Passos, Maria Inês Bruno Tavares, Roberto Cucinelli P. Neto
The NMR spectroscopy is constituted by many techniques, which uses different pulse sequences that allow us to obtain detailed information on chemical structure, intermolecular interactions, particles and nanoparticle dispersions, according to the molecular dynamic and the mechanism of intermolecular interaction [8-15].
The spectrum obtained from solid-state NMR is a result of sample chemical structure and molecular dynamic behavior, which reflects its homogeneity or heterogeneity, the interactions between components and the molecular characteristics of samples.
It is known that wideness of NMR signals in the solid-state does not permit obtaining much information about the molecular structure.
Results and Discussion Usually 13C and 1H nuclei are used as probes for determining the structure and dynamics of polymer nanocomposites.
Chemistry of Materials 13, 3796, 2001 [12] Bruno M., Tavares M.I.B., Motta L., Miguez E., Preto M., Fernandez A.
The spectrum obtained from solid-state NMR is a result of sample chemical structure and molecular dynamic behavior, which reflects its homogeneity or heterogeneity, the interactions between components and the molecular characteristics of samples.
It is known that wideness of NMR signals in the solid-state does not permit obtaining much information about the molecular structure.
Results and Discussion Usually 13C and 1H nuclei are used as probes for determining the structure and dynamics of polymer nanocomposites.
Chemistry of Materials 13, 3796, 2001 [12] Bruno M., Tavares M.I.B., Motta L., Miguez E., Preto M., Fernandez A.
Online since: October 2022
Authors: Mariia Maksymova, Sergii G. Guzii, Oleksiy Khodakovskyy, Artem Kovalchuk, Stella Gornostal
A measuring antenna they been installed inside the shielding structure through a technological hole, which was tightly closed during the measurement process.
Das, Low percolation threshold and electromagnetic shielding effectiveness of nano-structured carbon based ethylene methyl acrylate nanocomposites.
Khomenko, Development and Application of Thin Wide-Band Screening Composite Materials, Physics and Chemistry of Solid State, 21 (4) (2020) 771–778
Collection of abstracts of the international scientific and technical conference Structure formation and destruction composite building materials and structures, April 08-09 Odessa (2021) 21-24
Das, Low percolation threshold and electromagnetic shielding effectiveness of nano-structured carbon based ethylene methyl acrylate nanocomposites.
Khomenko, Development and Application of Thin Wide-Band Screening Composite Materials, Physics and Chemistry of Solid State, 21 (4) (2020) 771–778
Collection of abstracts of the international scientific and technical conference Structure formation and destruction composite building materials and structures, April 08-09 Odessa (2021) 21-24
Online since: June 2015
Authors: Roslan Abd-Shukor, Siti Nurdalila Abd-Ghani, Kong Wei, Hon Kah Wye, Kong Ing
Lattice parameters a, b and c for the orthorhombic crystal structure were calculated from Miller indices (hkl) by using software MathCAD.
The peaks can be indexed to YBCO with orthorhombic crystal structure.
The lattice parameters of Fe3O4-added samples were not significantly different from these values, before and after gamma ray irradiation. 100 kGy of gamma ray irradiation does not lead to the variation in orthorhombic crystal structure of pure and Fe3O4-added YBCO.
The 60Co-γ radiation induced reinforcement of the orthorhombic crystal structure properties at relative low exposition doses seems to correspond also to an enhancement of the YBCO superconducting properties [22,23].
Chia, Synthesis of Iron Oxide (Fe3O4) Magnetic Nanocrystals by Green Chemistry Approach, Sains Malaysiana 43(6)(2014): 941–945
The peaks can be indexed to YBCO with orthorhombic crystal structure.
The lattice parameters of Fe3O4-added samples were not significantly different from these values, before and after gamma ray irradiation. 100 kGy of gamma ray irradiation does not lead to the variation in orthorhombic crystal structure of pure and Fe3O4-added YBCO.
The 60Co-γ radiation induced reinforcement of the orthorhombic crystal structure properties at relative low exposition doses seems to correspond also to an enhancement of the YBCO superconducting properties [22,23].
Chia, Synthesis of Iron Oxide (Fe3O4) Magnetic Nanocrystals by Green Chemistry Approach, Sains Malaysiana 43(6)(2014): 941–945
Online since: April 2013
Authors: Kah Yoong Chan, Zi Neng Ng, Teck Yong Tou, Jian Wei Hoon
In general, higher substrate temperature exhibits high optical transmittance of 90-% and enhanced granular structure which can be attributed to the increase of structural homogeneity and the crystallinity of the films deposited at higher substrate temperatures [15, 23].
Figure 2 I-V characteristics of the ZnO/glass sensor structure at substrate temperature of 450 oC.
McLachlan, "Optimised pulsed laser deposition of ZnO thin films on transparent conducting substrates," Journal of Materials Chemistry, vol. 21, pp. 8178-8182, 2011
Schneider, "Structure evolution of magnetron sputtered TiO2 thin films," Journal of Applied Physics, vol. 109, pp. 023512-023512-6, 2011
Shi, "Effect of grain size on the electrical properties of ultraviolet photodetector with ZnO/diamond film structure," Journal of Crystal Growth, vol. 300, pp. 353-357, 2007
Figure 2 I-V characteristics of the ZnO/glass sensor structure at substrate temperature of 450 oC.
McLachlan, "Optimised pulsed laser deposition of ZnO thin films on transparent conducting substrates," Journal of Materials Chemistry, vol. 21, pp. 8178-8182, 2011
Schneider, "Structure evolution of magnetron sputtered TiO2 thin films," Journal of Applied Physics, vol. 109, pp. 023512-023512-6, 2011
Shi, "Effect of grain size on the electrical properties of ultraviolet photodetector with ZnO/diamond film structure," Journal of Crystal Growth, vol. 300, pp. 353-357, 2007
Online since: July 2019
Authors: A. Abdelkader, E.A. Dawi
In the past few decades, metal NPs of varying sizes has been prepared by physical as well as chemical methods [13], and their morphology and geometrical structures were examined by microscopic techniques.
Overall, self-assembly has emerged as a powerful technique for controlling the structure and properties of ensembles of nanoscale particles [14,15].
On the other hand, drawbacks and single defects within self-assembled structure are unavoidable and are untreatable.
Coupling between the plasmonic resonances in nearby structures, the orientation of the particles relative to the incident radiation and/or the polarization state of the incident light have a dramatic effect on the optical response of NPs.
Chemistry, 14, 517 (2004)
Overall, self-assembly has emerged as a powerful technique for controlling the structure and properties of ensembles of nanoscale particles [14,15].
On the other hand, drawbacks and single defects within self-assembled structure are unavoidable and are untreatable.
Coupling between the plasmonic resonances in nearby structures, the orientation of the particles relative to the incident radiation and/or the polarization state of the incident light have a dramatic effect on the optical response of NPs.
Chemistry, 14, 517 (2004)