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Online since: June 2024
Authors: Aniqa Tasnim, Chanchal Kumar Roy, H.M. Mamun Al Rashed
However, Sn played the role of an alloying element in Mg-Zn alloys in order to advance the corrosion performance of the whole structure.
If the added Sn gets melted in the base matrix, hydrogen overpotential of the structure is lowered which in turn leads to increased corrosion resistance.
In the microstructure of the hot-rolled Mg-2Zn sample (Fig. 1a), the grain structure is refined due to hot rolling.
All three alloys exhibit a less pronounced inductive loop at high frequencies for 1-3 hours of immersion with 2% Sn alloyed structure, indicating cation transfer from the alloy surface to the solution.
Luo, “Magnesium alloys for lightweight powertrains and automotive structures,” in Materials, Design and Manufacturing for Lightweight Vehicles, Elsevier, 2020, pp. 125–186. doi: 10.1016/B978-0-12-818712-8.00004-5
If the added Sn gets melted in the base matrix, hydrogen overpotential of the structure is lowered which in turn leads to increased corrosion resistance.
In the microstructure of the hot-rolled Mg-2Zn sample (Fig. 1a), the grain structure is refined due to hot rolling.
All three alloys exhibit a less pronounced inductive loop at high frequencies for 1-3 hours of immersion with 2% Sn alloyed structure, indicating cation transfer from the alloy surface to the solution.
Luo, “Magnesium alloys for lightweight powertrains and automotive structures,” in Materials, Design and Manufacturing for Lightweight Vehicles, Elsevier, 2020, pp. 125–186. doi: 10.1016/B978-0-12-818712-8.00004-5
Online since: April 2023
Authors: Hui Huang, Er Hua
Fig.1 The three-dimensional structure of [HEtHex][TFSA], and the bonds length/nm is marked.
The structure of [HEtHex][TFSA] with 7SO2 is designed and tried to optimized, but it was failed
AIM analyses and NBO data showed that the H-bond energies for the interactions in the structures of PILs-nSO2 are larger than those for PILs-nCO2.
Zhang, Ionic liquid-based CO2 capture systems: structure, interaction and process, Chem.
Wilkes, A short history of ionic liquids—from molten salts to neoteric solvents, Green Chemistry. 4(2) (2002) 73-80
The structure of [HEtHex][TFSA] with 7SO2 is designed and tried to optimized, but it was failed
AIM analyses and NBO data showed that the H-bond energies for the interactions in the structures of PILs-nSO2 are larger than those for PILs-nCO2.
Zhang, Ionic liquid-based CO2 capture systems: structure, interaction and process, Chem.
Wilkes, A short history of ionic liquids—from molten salts to neoteric solvents, Green Chemistry. 4(2) (2002) 73-80
Online since: September 2010
Authors: X. Miao, J. Liu, Z. Dong
However, the two methods are not
applicable for depositing coatings on porous structures.
Using the stereozoom microscope, the porous structures (pore size, and pore interconnectivity) were observed.
Structure and mechanical strength of porous alumina/zirconia composites.
The 58S33C glass coating was homogeneously attached to the surface of the pore walls in the porous structure.
Srdić, Materials Chemistry and Physics 47[1] (1997) p.78-84
Using the stereozoom microscope, the porous structures (pore size, and pore interconnectivity) were observed.
Structure and mechanical strength of porous alumina/zirconia composites.
The 58S33C glass coating was homogeneously attached to the surface of the pore walls in the porous structure.
Srdić, Materials Chemistry and Physics 47[1] (1997) p.78-84
Online since: November 2015
Authors: Jian Gang Chen, Bi Jia Wang, Yi Qi Yang, Lu Yi Chen, Su Xin Xu
The relationship between dye structure and kinetic parameters needs to be understood.
The chemical structures of Disperse Red 54, Disperse Blue 165:1 and PLA are shown in Fig. 1.
Fig.1 Chemical structures of PLA (a), Disperse Red 54 (b)and Disperse Blue 165:1 (c).
The Effect of Dye Structures The thermodynamic data could be further rationalized in terms of dye structures.
[11] Karst, D., et al., Effect of disperse dye structure on dye sorption onto PLA fiber.
The chemical structures of Disperse Red 54, Disperse Blue 165:1 and PLA are shown in Fig. 1.
Fig.1 Chemical structures of PLA (a), Disperse Red 54 (b)and Disperse Blue 165:1 (c).
The Effect of Dye Structures The thermodynamic data could be further rationalized in terms of dye structures.
[11] Karst, D., et al., Effect of disperse dye structure on dye sorption onto PLA fiber.
Online since: April 2019
Authors: Dana Shejbalova, Zdenek Dvorak
The Influence of Mould Cavities´ Surface Structure on their Contamination when Processing Polymers
Shejbalova Dana1,a* and Dvorak Zdenek1,b
1Tomas Bata University in Zlin, Faculty of Technology, Vavreckova 275, 76272 Zlin,
Czech Republic
ashejbalova@utb.cz, bzdvorak@utb.cz
Keywords: surface, contamination, polymer, rubber, coating, vulcanisation
Abstract.
Dvorak, Infrared analysis of fouling during EPDM curing studied on molds made of steel and aluminium alloys, Rubber Chemistry and Technology. 91 (2018) 390-400
Dvorak, Infrared analysis of fouling during EPDM curing studied on molds made of steel and aluminium alloys, Rubber Chemistry and Technology. 91 (2018) 390-400
Online since: July 2025
Authors: Safira Vanisa, Selma Wulandari, Nuryono Nuryono, Bambang Rusdiarso
It is probable that since CuONP added to MTA has a less homogeneous or uniform (b)
(a)
structure, CuONP may not cover some of the empty spaces in MTA [24].
Compressive strength test results for MTA/CuO Sample Compressive strength (MPa) MTA 9.80 ± 0.53 MTA/CuO-1 11.71 ± 1.78 MTA/CuO-2 12.03 ± 0.44 MTA/CuO-3 9.22 ± 0.14 In this study, the hydration reaction of MTA will change its shape or phase into a gel structure and change ions.
The structure of the MTA/CuO composite material is denser than MTA with the addition of 1% CuONP, with most of the Ca(OH)2 crystals still visible.
The morphology of the structure of MTA/CuO after the addition of CuONP can be seen in Figure 3.
The mechanism of adding CuONP to MTA increases the strength of MTA/CuO cement is by reducing the number and size of Ca(OH)2 crystals, accelerating the formation of hydrated C-S-H gels and filling the gaps in the C-S-H gel structure or empty spaces between MTA particles, resulting in the structure of hydrated MTA/CuO which is denser, compact and has a smaller pore surface area [24].
Compressive strength test results for MTA/CuO Sample Compressive strength (MPa) MTA 9.80 ± 0.53 MTA/CuO-1 11.71 ± 1.78 MTA/CuO-2 12.03 ± 0.44 MTA/CuO-3 9.22 ± 0.14 In this study, the hydration reaction of MTA will change its shape or phase into a gel structure and change ions.
The structure of the MTA/CuO composite material is denser than MTA with the addition of 1% CuONP, with most of the Ca(OH)2 crystals still visible.
The morphology of the structure of MTA/CuO after the addition of CuONP can be seen in Figure 3.
The mechanism of adding CuONP to MTA increases the strength of MTA/CuO cement is by reducing the number and size of Ca(OH)2 crystals, accelerating the formation of hydrated C-S-H gels and filling the gaps in the C-S-H gel structure or empty spaces between MTA particles, resulting in the structure of hydrated MTA/CuO which is denser, compact and has a smaller pore surface area [24].
Online since: October 2006
Authors: Dušan Galusek
They suggest that cage like structures
form at the interface between the alumina grain and the amorphous silica film, which can
accommodate metal cations such as calcium or magnesium. [35].
Up to a concentration of 12 atom % calcium atoms are segregated in these cage-like structure decreasing the glass/grain interfacial energy [36, 37, 38].
Most recent observations indicate that MgO has a profound influence on atomic structure of grain boundaries.
The structure, thermal expansion, and temperature dependence of viscosity of the glass are thus significantly altered.
Kramer, Vol. 11, Structure and Properties of Ceramics, Vol. editor M.
Up to a concentration of 12 atom % calcium atoms are segregated in these cage-like structure decreasing the glass/grain interfacial energy [36, 37, 38].
Most recent observations indicate that MgO has a profound influence on atomic structure of grain boundaries.
The structure, thermal expansion, and temperature dependence of viscosity of the glass are thus significantly altered.
Kramer, Vol. 11, Structure and Properties of Ceramics, Vol. editor M.
Online since: June 2014
Authors: Siti Nur Azella Zaine, Norani Muti Mohamed, Mohamad Azmi Bustam
In the past, numerous attempts have been made to produce optimum TiO2 structures such as synthesized nanowires, nanorods, nanotubes and even one dimensional structure.
X-ray diffraction (XRD) technique was used to evaluate the crystallographic structure and crystallite size (grain size) of the samples using a Ni-filtered Cu Kα radiation (λ= 1.54 Å).
This condition proves that the aggregation of TiO2 photoelectrode material structures could introduce light scattering that can enhance light harvesting efficiency.
Cao, Hierarchically structured ZnO film for dye-sensitized solar cells with enhanced energy conversion efficiency, Adv.
Wang, Preparation of TiO2 nanocrystalline with 3-5 nm and application for dye-sensitized solar cell, Journal of Photochemmistry and Photobiology A: Chemistry, 189 (2007) 314-321
X-ray diffraction (XRD) technique was used to evaluate the crystallographic structure and crystallite size (grain size) of the samples using a Ni-filtered Cu Kα radiation (λ= 1.54 Å).
This condition proves that the aggregation of TiO2 photoelectrode material structures could introduce light scattering that can enhance light harvesting efficiency.
Cao, Hierarchically structured ZnO film for dye-sensitized solar cells with enhanced energy conversion efficiency, Adv.
Wang, Preparation of TiO2 nanocrystalline with 3-5 nm and application for dye-sensitized solar cell, Journal of Photochemmistry and Photobiology A: Chemistry, 189 (2007) 314-321
Online since: November 2005
Authors: Andreas Pichler, Andrej Samoilov, Yuri Titovets, Gottfried Hribernig, Nikolay Y. Zolotorevsky
Experiment
The chemistries of the investigated steels with varying Cr content are listed in Table 1.
The significant part of the structure is a carbide-free bainite within this temperature range.
This structure cannot be interpreted neither as nodular bainite nor as pearlite.
Significantly, the different structure forms in the steel with minimized Cr content.
Only limited appearance of a structure similar to a nodular bainite occurs.
The significant part of the structure is a carbide-free bainite within this temperature range.
This structure cannot be interpreted neither as nodular bainite nor as pearlite.
Significantly, the different structure forms in the steel with minimized Cr content.
Only limited appearance of a structure similar to a nodular bainite occurs.
Online since: August 2020
Authors: Songporn Sunthornphan, Nutcha Pasuthawong, Tanawin Intaravicha, Nattapon Ruangthai, Auayporn Apirakaramwong, Praneet Opanasopit, Theerasak Rojanarata
The Effect of Spermidine and Spermine on Chitosan-Mediated Gene Delivery
AUAYPORN Apirakaramwong1,a*, SONGPORN Sunthornphan1,b,
NUTCHA Pasuthawong1,c, TANAWIN Intaravicha1,d,
NATTAPON Ruangthai1,e, THEERASAK Rojanarata2,4,f
and PRANEET Opanasopit3,4,g
1Department of Biopharmacy,
2Department of Pharmaceutical Chemistry,
3Department of Pharmaceutical Technology,
4Pharmaceutical Development of Green Innovations Group (PDGIG), Faculty of Pharmacy, Silpakorn University, Nakhon Pathom, Thailand
aapirakaramwong_a@su.ac.th, bsunthornphan_s@silpakorn.edu, cpasuthawong_n@silpakorn.edu, dIntaravicha_t@silpakorn.edu, eruangthai_n@silpakorn.edu, frojanarata_t@su.ac.th, gopanasopit_p@su.ac.th,
Keywords: chitosan, spermidine, spermine, polyplex, gene deliver
Abstract.
Their structures contain tri- and tetra-amine, respectively.
Polyamines bind to nucleic acids and help stabilize the double helical structures [7].
Fig. 1 Chemical structures of main polyamines Experimental Materials.
Their structures contain tri- and tetra-amine, respectively.
Polyamines bind to nucleic acids and help stabilize the double helical structures [7].
Fig. 1 Chemical structures of main polyamines Experimental Materials.