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Online since: March 2014
Authors: Ching Wen Lou, Jia Horng Lin, Ming Chun Sie, Yuan Jen Chang, Bing Chiuan Shiu
This study crisscross weaves the warp yarns and the weft yarns to form woven fabrics, the dense structure of which subsequently creates good mechanical property [7].
Hydrophilic and hydrophobic properties of the fabrics have been conducted by previous study [8]; therefore, this study observes the structure and measures water contact for analysis and discussion.
The results of stereomicroscopic observation and water contact angle measurement show that 40-count cotton fibers are too fine to compose a compact structure and to absorb water.
The 20-count cotton fibers have a greater fineness and thus can form a compact structure to retain water inside cotton fibers, which eventually causes conductivity between stainless steel fibers.
Diamond: Procedia Chemistry Vol. 1 (2009), p. 1103
Hydrophilic and hydrophobic properties of the fabrics have been conducted by previous study [8]; therefore, this study observes the structure and measures water contact for analysis and discussion.
The results of stereomicroscopic observation and water contact angle measurement show that 40-count cotton fibers are too fine to compose a compact structure and to absorb water.
The 20-count cotton fibers have a greater fineness and thus can form a compact structure to retain water inside cotton fibers, which eventually causes conductivity between stainless steel fibers.
Diamond: Procedia Chemistry Vol. 1 (2009), p. 1103
Online since: December 2012
Authors: Qiu Luan Chen, Wen Yan Li, Teng Ge Mi
The binding energy of CO adsorption on Fe2O3@ SBA-15 is -0.402 eV, and the atomic structures, electronic proper of the CO/Fe2O3@SBA were also analyzed.
Due to the mesoporous material SBA-15 and its derivatives in structure performance advantages, it would be a new type of inorganic or inorganic/organic composite functional materials in catalysis.
To understand the mechanisms which determine the enhancement of molecular adsorption on supported cluster, we examine the electronic structures of the various systems in detail.
The atomic structures, electronic proper of the CO/Fe2O3@SBA were analyzed in detail.
Wang, et al: submitted to Journal of Natural Gas Chemistry(2007), 155 [2] Song, H., E.
Due to the mesoporous material SBA-15 and its derivatives in structure performance advantages, it would be a new type of inorganic or inorganic/organic composite functional materials in catalysis.
To understand the mechanisms which determine the enhancement of molecular adsorption on supported cluster, we examine the electronic structures of the various systems in detail.
The atomic structures, electronic proper of the CO/Fe2O3@SBA were analyzed in detail.
Wang, et al: submitted to Journal of Natural Gas Chemistry(2007), 155 [2] Song, H., E.
Online since: September 2013
Authors: Kai Jun Xiao, Zhao Mei Wang, Yang Liu, Bing Jie Li
It was indicated that the surface structure of obtained films was dense and compact, which was composed of nano SiO2 particles.
The cross-section images, as displayed in Fig.1c and d also show internal compact structure and no obvious aperture.
The BSA retention of composite film changed little, was about 97%, which was related to the network structure between cellulose molecules and dense surface structure of composite film.
It was indicated that the modified nano-SiO2 /cellulose composite films show a significant advantage on the surface structure, thermal stability, mechanical property over unmodified nano-SiO2 / cellulose composite films.
Green Chemistry, 2009, 11:646- 655
The cross-section images, as displayed in Fig.1c and d also show internal compact structure and no obvious aperture.
The BSA retention of composite film changed little, was about 97%, which was related to the network structure between cellulose molecules and dense surface structure of composite film.
It was indicated that the modified nano-SiO2 /cellulose composite films show a significant advantage on the surface structure, thermal stability, mechanical property over unmodified nano-SiO2 / cellulose composite films.
Green Chemistry, 2009, 11:646- 655
Online since: April 2014
Authors: Jun Zhang, Li Yan Yin
The phase structure analysis of the (TiAlNb)N films is performed by the Rigaku D/max-rA X-ray diffraction-meter using CuKα radiation (40KV, 40mA).
The f.c.c structure, very close to the one of TiN, is determined in all the films on the basis of the three evident diffraction peaks of (111) and (222) planes.
The surficial phase structures of the (TiAlNb)N films are almost consistent despite of the bias voltage change.
(2) The f.c.c structure and the preferred growth orientation of (111) plane are restrained despite of the change of bias voltage in all of the as-deposited (TiAlNb)N films
Padmanabhan: J Mater Sci, 47 (2012) 3522-3525 [5] K.L.Lin, M.Y.Hwang, C.D.Wu: Materials Chemistry and Physics, 46(1996) 77-83 [6] J.G.
The f.c.c structure, very close to the one of TiN, is determined in all the films on the basis of the three evident diffraction peaks of (111) and (222) planes.
The surficial phase structures of the (TiAlNb)N films are almost consistent despite of the bias voltage change.
(2) The f.c.c structure and the preferred growth orientation of (111) plane are restrained despite of the change of bias voltage in all of the as-deposited (TiAlNb)N films
Padmanabhan: J Mater Sci, 47 (2012) 3522-3525 [5] K.L.Lin, M.Y.Hwang, C.D.Wu: Materials Chemistry and Physics, 46(1996) 77-83 [6] J.G.
Online since: June 2015
Authors: A.S. Nadzirah, M. Rusop, I. Abdul Latif
Nanotechnology is described as the “science of materials and systems with structures and components which demonstrate novel physical, chemical and biological properties or phenomena that exist in the nano size scale (1-100 nm)”.
These result indicate that wet milling process is better to get a nanoparticle due to plant material is hard structure and not collapse completely, even at long milling duration [12,22] and leading to the agglomerate phenomenon in powder form [23] .
The nano exist in random structure in an agglomerated form.
Umi Kalsom, Antioxidant and nitric oxide inhibition activities of selected Malay traditional vegetables, Food Chemistry. 95 (2006) 566-573
Abdullah, Optimization of ball milling parameters to produce Centella asiatica herbal nanopowder, Journal of Nanostructure in Chemistry. 3 (2013) 79
These result indicate that wet milling process is better to get a nanoparticle due to plant material is hard structure and not collapse completely, even at long milling duration [12,22] and leading to the agglomerate phenomenon in powder form [23] .
The nano exist in random structure in an agglomerated form.
Umi Kalsom, Antioxidant and nitric oxide inhibition activities of selected Malay traditional vegetables, Food Chemistry. 95 (2006) 566-573
Abdullah, Optimization of ball milling parameters to produce Centella asiatica herbal nanopowder, Journal of Nanostructure in Chemistry. 3 (2013) 79
Online since: February 2018
Authors: Xiao Zhang, Xin Xing Zhou
Soybean oil contains triglycerides, which are three-aim structures in which the arms can be either saturated or unsaturated fatty acids [6].
Micro-morphology or micro-structure of PU has been investigated and the influence of soft segment composition on segmented PU co-polymers.
Micro-structure of PU membranes were studied by Monte Carlo and molecular dynamics.
Zhang, Structure and properties of polyurethanes based on halogenated and nonhalogenated soy-polyols, Journal of Polymer Science: Part A Polymer Chemistry. 38 (2000) 4062-4069.DOI: 10.1002/1099-0518(20001115)38
Mousavi, CO2/H2, separation using a highly permeable polyurethane membrane: Molecular dynamics simulation, Journal of Molecular Structure. 1100 (2015) 401-414.DOI: org/10.1016/j.molstruc.2015.07.029
Micro-morphology or micro-structure of PU has been investigated and the influence of soft segment composition on segmented PU co-polymers.
Micro-structure of PU membranes were studied by Monte Carlo and molecular dynamics.
Zhang, Structure and properties of polyurethanes based on halogenated and nonhalogenated soy-polyols, Journal of Polymer Science: Part A Polymer Chemistry. 38 (2000) 4062-4069.DOI: 10.1002/1099-0518(20001115)38
Mousavi, CO2/H2, separation using a highly permeable polyurethane membrane: Molecular dynamics simulation, Journal of Molecular Structure. 1100 (2015) 401-414.DOI: org/10.1016/j.molstruc.2015.07.029
Online since: May 2021
Authors: Mohd Ambar Yarmo, Maratun Ajina Abu Tahari, Tengku Shafazila Tengku Saharuddin, Alinda Samsuri, Fairous Salleh, Norliza Dzakaria, Mohd Nor Latif
Addition of other elements as doping have been extensively employed to adjust the electronic structures of particles by enhancing the chemical and physical properties, catalytic activity, electo-optical and magnetic performance [13, 14].
The XRD's Bruker AXS D8 Advance type was used to determine the crystal structures of the catalysts before and after reactions.
Addition of zirconia to modified MoO3 structure and morphology caused the increase in reducing temperature of MoO3.
It may due to the stable structure of alloy ZrMo2O8 (JCPDS 38-1466), which promoted a strong modification to the behaviour of the catalyst.
Li, Effect of zirconium addition on the structure and properties of CuO/CeO2 catalysts for high-temperature water-gas shift in an IGCC system, Int.
The XRD's Bruker AXS D8 Advance type was used to determine the crystal structures of the catalysts before and after reactions.
Addition of zirconia to modified MoO3 structure and morphology caused the increase in reducing temperature of MoO3.
It may due to the stable structure of alloy ZrMo2O8 (JCPDS 38-1466), which promoted a strong modification to the behaviour of the catalyst.
Li, Effect of zirconium addition on the structure and properties of CuO/CeO2 catalysts for high-temperature water-gas shift in an IGCC system, Int.
Online since: October 2025
Authors: Yoichi Kayamori, Noboru Konda
This steel was selected because it is the most widely used steel for welded structures.
In the experiment, the immersion period was completely known, but in the case of actual structures, it is thought that in many cases it is not possible to know the period during which the structure was actually exposed to a corrosive environment.
On the other hand, when only corrosion damage occurs first in an actual structure and fatigue damage must be considered after the steel surface has suffered considerable corrosion damage, or when the stress range Δσ in an actual structure is extremely small and the corrosion fatigue life is extremely long, and it is difficult to simulate this long-term corrosion fatigue phenomenon in a laboratory, situations may arise in which the conventional evaluation focusing on the dimensions of individual corrosion pits is not practical.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000).
In the experiment, the immersion period was completely known, but in the case of actual structures, it is thought that in many cases it is not possible to know the period during which the structure was actually exposed to a corrosive environment.
On the other hand, when only corrosion damage occurs first in an actual structure and fatigue damage must be considered after the steel surface has suffered considerable corrosion damage, or when the stress range Δσ in an actual structure is extremely small and the corrosion fatigue life is extremely long, and it is difficult to simulate this long-term corrosion fatigue phenomenon in a laboratory, situations may arise in which the conventional evaluation focusing on the dimensions of individual corrosion pits is not practical.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000).
Online since: August 2023
Authors: Frank Czerwinski
By designing the feedstock chemistry, mixing proportions, and preheating temperature the selective partition of alloying elements between the solid and liquid may be achieved.
As a separate product, foams with thixotropic structure of the metallic skeleton may be manufactured by injection molding [8].
The generation of thixotropic structures in partially molten slurry is the essence of semisolid injection molding.
Year Invention/finding Researcher Institution Country Ref. 1923 Thixotropy phenomenon Schalek and Szegvari Colloid Chemistry Department, Fritz Haber Institute (FHI) Germany [13] 1972 Semisolid processing of metallic alloys Flemings et al.
Czerwinski, "On the generation of thixotropic structures during melting of Mg-9Al-1Zn alloy," Acta Mater., vol. 50, pp. 3265-3281, 2002
As a separate product, foams with thixotropic structure of the metallic skeleton may be manufactured by injection molding [8].
The generation of thixotropic structures in partially molten slurry is the essence of semisolid injection molding.
Year Invention/finding Researcher Institution Country Ref. 1923 Thixotropy phenomenon Schalek and Szegvari Colloid Chemistry Department, Fritz Haber Institute (FHI) Germany [13] 1972 Semisolid processing of metallic alloys Flemings et al.
Czerwinski, "On the generation of thixotropic structures during melting of Mg-9Al-1Zn alloy," Acta Mater., vol. 50, pp. 3265-3281, 2002
Online since: February 2014
Authors: Stanislav Unčík, Svetozár Balkovic, Mária Hlavinková, Alena Struhárová
Chemical composition of the fly ashes provides information about structure of the original coal.
Chemical structure is shown in table 1.
Table 1 Chemical structure of the ashes Ash component Fluidized fly ash Grate boiler fly ash Content [% hm.]
Malolepszy: The sulphate corrrosion of mortars containing FBC Ash, 12th International Congress on the Chemistry of Cements, Montreal (2007) 1-12
Congress on the Chemistry of Cement.
Chemical structure is shown in table 1.
Table 1 Chemical structure of the ashes Ash component Fluidized fly ash Grate boiler fly ash Content [% hm.]
Malolepszy: The sulphate corrrosion of mortars containing FBC Ash, 12th International Congress on the Chemistry of Cements, Montreal (2007) 1-12
Congress on the Chemistry of Cement.