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Online since: January 2009
Authors: Xing Guo Zhang, Hong Bin Liu, Guo Hong Qi, Yu Tao Ma
The research on metallic melt structure [19] showed that the structure, thermal motion and a
series of mechanical properties of melt under low superheat were similar with these of crystals.
At the same time, the structure of melt was affected by chemical bond also.
So the structure of the clusters formed in Mg melt should be similar with that of α-Mg3Sb2 (shown in fig.5(a)) at 720℃.
Structure of metallic melt, 2003, 32~66
Journal of Solid State Chemistry, 179(2006), 2252-2257
At the same time, the structure of melt was affected by chemical bond also.
So the structure of the clusters formed in Mg melt should be similar with that of α-Mg3Sb2 (shown in fig.5(a)) at 720℃.
Structure of metallic melt, 2003, 32~66
Journal of Solid State Chemistry, 179(2006), 2252-2257
Online since: July 2011
Authors: Hua Li Zhang, Hong Quan Wang, Chun Jie Yan, Guo Jing Shu, Duo Wang, Jie Yu Chen
Cyanobacteria cells tend to float in water because of the negatively charged cell surface, their low specific gravity and specific structure.
TiO2-pillared montmorillonite is a sort of layered clays with basic properties, micropore structure, photo catalyst.
The surface of which is electropositive, the TiO2-pillared montmorillonite can form a granular electric double layer structure in the natural water, so it can adsorb the negative algae effectively.
The photocatalysis of TiO2 mainly comes from its special electronic structure and good photoelectric characteristics.
[4] Shenmei Sun, Yinshan Jiang , Lixin Yu, Fangfei Li, Zhengwen Yang,Tianyi Hou, Daqiang Hu, Maosheng Xia: Materials Chemistry and Physics.
TiO2-pillared montmorillonite is a sort of layered clays with basic properties, micropore structure, photo catalyst.
The surface of which is electropositive, the TiO2-pillared montmorillonite can form a granular electric double layer structure in the natural water, so it can adsorb the negative algae effectively.
The photocatalysis of TiO2 mainly comes from its special electronic structure and good photoelectric characteristics.
[4] Shenmei Sun, Yinshan Jiang , Lixin Yu, Fangfei Li, Zhengwen Yang,Tianyi Hou, Daqiang Hu, Maosheng Xia: Materials Chemistry and Physics.
Online since: October 2013
Authors: Miao Zhang, Wen Hua Song, Zhao Peng Ni, Xin Huang
Figure 1 and figure 2 respectively show the two structure of external insulation system with curtain wall.
Structure of curtain wall external Fig. 2.
Structure of insulation decorative board insulation system external insulation system Fig. 3.
Aluminum panel with 2.5 mm thick is hung outside of thermal insulation layer and the plate is fixed on the outer structure layer through Stainless steel keel.
The structure of external insulation system is shown in Fig.5.
Structure of curtain wall external Fig. 2.
Structure of insulation decorative board insulation system external insulation system Fig. 3.
Aluminum panel with 2.5 mm thick is hung outside of thermal insulation layer and the plate is fixed on the outer structure layer through Stainless steel keel.
The structure of external insulation system is shown in Fig.5.
Online since: April 2015
Authors: M. Ramadan, K.S. Abdel Halim, N. Messaoudene, A.A. Al-Ghonamy, M. Aichouni
Both approaches are suited to produce submicron grain structures with attractive mechanical properties [2].
With decreasing sintering time to 5h as shown in Fig.8 b, highly porous structure can be detected with the presence of micropores and absence of macropores.
For compact completely reduced and sintered in pure hydrogen for 1 hr (Fig.9), a homogenous structure composed mainly of Fe 0.64Ni 0.36 alloys can be detected.
A homogenous morphology structure composed mainly of Fe 0.64Ni0.36 alloy can be developed.
Bahgat, Industrial & Engineering Chemistry Research, 51(2012),16354-16360 [21] K.S Abdel Halim Materials Letter, 68(2012), 478-481 [22] P.K.
With decreasing sintering time to 5h as shown in Fig.8 b, highly porous structure can be detected with the presence of micropores and absence of macropores.
For compact completely reduced and sintered in pure hydrogen for 1 hr (Fig.9), a homogenous structure composed mainly of Fe 0.64Ni 0.36 alloys can be detected.
A homogenous morphology structure composed mainly of Fe 0.64Ni0.36 alloy can be developed.
Bahgat, Industrial & Engineering Chemistry Research, 51(2012),16354-16360 [21] K.S Abdel Halim Materials Letter, 68(2012), 478-481 [22] P.K.
Online since: July 2013
Authors: Zhe Liu, Xian Li, Fei Heng Yue, Lu Feng, Jin Hui Cai, Xu Sheng Kang, Ping Jie Huang
Its molecular structure is shown in fig.1.
The isolated molecule and crystal structure of beta-endosulfan are shown in Fig6 and Fig7.
The input file which presents the structure parameters of beta-endosulfan crystal was exported by the retrieval software CCDC.
Based on the optimized structure of the Beta-Endosulfan crystal, its frequencies shown in Table3 have been calculated using the same basis set and function.
Chinese Journal Of Analytical Chemistry. 2008, 36(5): 623-626.
The isolated molecule and crystal structure of beta-endosulfan are shown in Fig6 and Fig7.
The input file which presents the structure parameters of beta-endosulfan crystal was exported by the retrieval software CCDC.
Based on the optimized structure of the Beta-Endosulfan crystal, its frequencies shown in Table3 have been calculated using the same basis set and function.
Chinese Journal Of Analytical Chemistry. 2008, 36(5): 623-626.
Online since: March 2020
Authors: H. Azhan, Azman Kasim, Nurbaisyatul Ermiza Suhaimi, Ibrahim Norazila, Siti Fatimah Saipuddin
The structure and phase analyses of the samples were studied using X-Ray Diffraction patterns at room temperature with a constant scan rate between 2θ = 10oC – 90oC.
When the divalent cation Ca2+ replaced the trivalent Eu3+ ion, the oxygen content in the BSCCO structure increases thus cause the distortion between the slabs of the Bi-2223 phases which shows that the Eu nanoparticles does participate in the crystal structure of the Bi-2223.
Fig. 2 shows the FESEM images of fractured structure of Bi-2223 samples doped with Eu nanoparticles sintered at 850oC for 48 hours.
However, it is clear that the increase of Eu concentration degraded the grains to tiny plate-like structure that indicate Bi-2212 phases hence increase its porosity [13].
Fig.2 Eu0 presents the undoped sample with smoothest and clear flaky layers structure among the samples produced.
When the divalent cation Ca2+ replaced the trivalent Eu3+ ion, the oxygen content in the BSCCO structure increases thus cause the distortion between the slabs of the Bi-2223 phases which shows that the Eu nanoparticles does participate in the crystal structure of the Bi-2223.
Fig. 2 shows the FESEM images of fractured structure of Bi-2223 samples doped with Eu nanoparticles sintered at 850oC for 48 hours.
However, it is clear that the increase of Eu concentration degraded the grains to tiny plate-like structure that indicate Bi-2212 phases hence increase its porosity [13].
Fig.2 Eu0 presents the undoped sample with smoothest and clear flaky layers structure among the samples produced.
Online since: September 2016
Authors: Nawin Viriya-Empikul, Apiluck Eiad-Ua, Wachiraporn Gunpum, Kajornsak Faungnawakij
Cattail Flower (Typha Angustifolia) is a nanofiber structure with hydrophobicity resulted in carbon graphite structure can be applied to several fields [4,5].
After electroplating at 3.0V (50°C) (Fig. 2A), the carbon-supported nickel catalysts have a pyramidal-like structure with size of 0.383-0.4 μm diffuse on the sample surface [15].
After electroplating at 40°C (4.0V) (Fig. 3A), the carbon-supported nickel catalysts have a pyramidal-like structure with size of 0.413-0.521 μm.
When the solution temperature of electroplating increased, the size of pyramidal-like structure increased.
Emmerich: Hydrothermal carbonization of biomass residuals: a comparative review of the chemistry, processes and applications of wet and dry pyrolysis: Biofuels Vol. 2(2011), p. 89-124 [7] M.
After electroplating at 3.0V (50°C) (Fig. 2A), the carbon-supported nickel catalysts have a pyramidal-like structure with size of 0.383-0.4 μm diffuse on the sample surface [15].
After electroplating at 40°C (4.0V) (Fig. 3A), the carbon-supported nickel catalysts have a pyramidal-like structure with size of 0.413-0.521 μm.
When the solution temperature of electroplating increased, the size of pyramidal-like structure increased.
Emmerich: Hydrothermal carbonization of biomass residuals: a comparative review of the chemistry, processes and applications of wet and dry pyrolysis: Biofuels Vol. 2(2011), p. 89-124 [7] M.
Online since: January 2017
Authors: Xiu Chen Zhao, Ying Liu, Jing Wei Cheng, Xuan Zhong
To overcome this problem, it is necessary to introduce an insulating shell to form a core/shell structure [4].
To investigate the crystal structure of the products, amorphous core-shell Fe-B@SiO2 submicrospheres were characterized by means of powder XRD.
The broad peak centred at 2θ=45° indicates the characteristics for the Fe-based amorphous sample, thus this peak corresponds to the Fe-B particles of amorphous structure.
The Fe-B submicrospheres and SiO2 shell are both in an amorphous structure, basically in the ferromagnetic state at room temperature.
Qu: Physical Chemistry Chemical Physics, Vol. 15 (2013) No.31, p.13038
To investigate the crystal structure of the products, amorphous core-shell Fe-B@SiO2 submicrospheres were characterized by means of powder XRD.
The broad peak centred at 2θ=45° indicates the characteristics for the Fe-based amorphous sample, thus this peak corresponds to the Fe-B particles of amorphous structure.
The Fe-B submicrospheres and SiO2 shell are both in an amorphous structure, basically in the ferromagnetic state at room temperature.
Qu: Physical Chemistry Chemical Physics, Vol. 15 (2013) No.31, p.13038
Online since: June 2008
Authors: Paulo E. Lopes, William T. Pennington, Michael S. Ellison
Ellison2,3,b
1
Department of Chemistry, Clemson University, Clemson, SC, USA.
2
School of Materials Science & Engineering, Clemson University, Clemson, SC, USA.
3
CAEFF - Center for Advanced Engineering Fibers and Films, Clemson University,
Clemson, SC, USA.
Understanding the influence of the processing conditions on the fiber structure was pursued from the early times of polymer use.
In the 1970s Spruiell, White and co-workers reported on the study of structure development during the melt spinning of polyethylene, polypropylene, and poly(amide 6) [5,6].
Small angle X-ray patterns obtained at different distances from the spinneret for all experimental conditions show qualitative changes in the lamellar structure of the polymer fibers.
Samuels: Structured Polymer Properties: The Identification, Interpretation, and Application of Crystalline Polymer Structure.
Understanding the influence of the processing conditions on the fiber structure was pursued from the early times of polymer use.
In the 1970s Spruiell, White and co-workers reported on the study of structure development during the melt spinning of polyethylene, polypropylene, and poly(amide 6) [5,6].
Small angle X-ray patterns obtained at different distances from the spinneret for all experimental conditions show qualitative changes in the lamellar structure of the polymer fibers.
Samuels: Structured Polymer Properties: The Identification, Interpretation, and Application of Crystalline Polymer Structure.
Online since: March 2020
Authors: De Cai Mi, Qiong Yao Ye, Guan Hua Sun, De Qiang Chen, Jun Hui Luo
In terms of micro-chemistry and mineral composition of carbonaceous mudstones, Ghosh analyzed the main chemical elements and compound forms of carbonaceous mudstones in the Gondwana basin, and it obtained the carbon and silica and sodium oxide content [7].
Fig.4(b) is a 1000 times image, the surface of the structure is rough, and the smaller pores are present between the agglomerates.
The crystal is to form a agglomerate, which is unevenly arranged, and there are a large number of gaps between the agglomerates, and the structure is poor.
A plurality of crystals is combined in a side-edge to form a flower-like shape, and the structure is loose.
Fig.6(c) shows an image of 3000 times, and the clay mineral crystals are in the form of flakes, and the structure is poor.
Fig.4(b) is a 1000 times image, the surface of the structure is rough, and the smaller pores are present between the agglomerates.
The crystal is to form a agglomerate, which is unevenly arranged, and there are a large number of gaps between the agglomerates, and the structure is poor.
A plurality of crystals is combined in a side-edge to form a flower-like shape, and the structure is loose.
Fig.6(c) shows an image of 3000 times, and the clay mineral crystals are in the form of flakes, and the structure is poor.