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Online since: September 2014
Authors: Xiao Hui Guo, Jin Ji Feng, Hai Cao, Xin Le Zhang
Introduction Steel fiber reinforced polymer-modified concrete (SFRPMC) is a variant of standard steel fiber reinforced in which a water emulsion of polymer substitutes for a portion of the water and mainly used to rapid repairing concrete structure, which has high early-strength and good bonding performance[1,2].
This property suggested application as an overlay on existing structures as well as for in new structure.
Several applications are foreseen in which steel fiber reinforced polymer modified concrete will give the designer or engineer greater flexibility in choosing material for new construction, upgrading structures and repairing cracked or cratered roads, runway and structures.
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: November 2011
Authors: Mitsuhiro Shigeishi, Tran Quoc Tho, Nguyen van Chanh
Its chemical structure can be described by Mn{-(SiO2)z – AlO2}n .wH2O, where “M” is a cation such as potassium, sodium or calcium, “n” is a degree of polymerization, and “z” is 1,2 or 3 [4].
It has demonstrated the change in soil structure as the bauxite is triggered by fly ash, activator, the temperature has changed the structure of materials, new minerals are created with dimensions at the level nano, allowing compacted in structure materials, the ability to keep the clay particles in the soil will help to strength and water resistence of composite material is improved.
Presence of activator increased loading ability, water resistance of inorganic materials through modifying structure of bauxite soil with stable skeleton.
Grocott, "The surface chemistry of Bayer process solids: a review", Colloids and Surfaces Physicochem.
Eng.1999, pp. 359–374 [4] Joseph Davidovits, “Geopolymer chemistry and applications”, 2008
Online since: May 2012
Authors: Yi Ping Tang, Ke Ao Hu, Hong Lv
Many efforts have been made to develop these new anode materials, such as CeO2 [5,6], doped LaCrO3 [7,8], and Sr2Mg1−xMnxMoCo6−δ with double perovskite structure [9].
The Ce0.9Fe0.1O2-δ sample calcined at different temperatures both displayed reflections only from cubic CeO2 (fluorite structure, Fm3m)[13], the fluorite structure was formed by the self-sustaining combustion.
So the structure of FDC can been stabilized during the electrode sintered in 1100ºC.
Fierro, Chemistry of Materials, 2005, 17, 2329-2339 [14] Peter Blennowa, Kent K.
[18] Hong-Ki Lee, Materials Chemistry and Physics, 77 (2002) 639-646
Online since: February 2014
Authors: Xia Hou, Hong Bo Yang
Given two positive N-dimensional signals x and y, the SSIM Index looks at their differences between luminance (brightness), contrasts, and structures.
Similarity of local patch structures is used to compare structures.
(3)SSM explores the structure of similarities between all pairs of spatial-patches.
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: October 2020
Authors: Vera P. Lodygina, Victoria V. Komratova, Elmira R. Badamshina, Dmitry A. Chernyayev, Aygul S. Dzhalmukhanova, Sergei V. Karpov
The latter makes it possible to control the structure of macrodiisocyanate obtained during the WPU synthesis and hence the properties of the final product.
Kinetic curves of catalytic reaction of IPDI and PBA (1) and PCL (2) in acetone solution, [NCO]/[OH] = 2.0, [NCO]0 = 0.8 mol/l, [DBTDL] = 4.5 mol/l, Т = 25 °С The difference in IPDI isocyanate group reactivities is of the great interest in terms of taking control over the macrodiisocyanate structure.
Peng, Structure, properties and application of a novel low-glossed waterborne polyurethane, Appl.
Weissberger (Eds.), Technique of organic chemistry, Interscience publishers, New York, 1955
Malkov, Solution structure of azidoalcohols studied by IR spectroscopy and quantum chemistry, J.
Online since: June 2015
Authors: Illyas Md Isa, Azlan Kamari, Suriani Abu Bakar, Nurhafizah Md Disa, S. Alfarisa, Azmi Mohamed, Mohamad Rusop Mahmood, Norhayati Hashim
Longer reaction time introduced did not affect the graphene structures and fewer defects were seen on the samples.
However, high chemicals consumption has partially damaged GO structures and made this breakthrough as an unfriendly approach for mass production of GO.
In other hand, oxidized graphite powder through Hummers method caused few oxygen functional groups such as hydroxyl, epoxy, carbonyl and carboxyl attached to GO structures produced.
However, the lack of uniformity of the structure produced via this method due to the high degree of graphene sheets agglomeration remains a problem to the researchers.
Chen, Graphene and graphene-based nanomaterials: the promising materials for bright future of electro analytical chemistry, Analyst 136 (2011) 4631-4641
Online since: September 2021
Authors: Maya Asyikin Mohamad Arif, Nur Arif Mortadza, Zainab Ngaini
The significance resonance of 1H and 13C NMR corresponded to the L1-5 and C1-5 structure is shown in Table 2 and Table 3.
Ag(I) azo-aspirin complex C1-5 structure.
Holeček Structure of azo dye organotin (IV) compounds containing a C, N‐chelating ligand.
Zavod, Basic concepts in medicinal chemistry, ASHP, (2013)
Johnson, Lipophilic efficiency: the most important efficiency metric in medicinal chemistry, Future.
Online since: July 2023
Authors: Rinlee Butch M. Cervera, Pearl Jamela B. Diamansil
Electrodes require stable chemical structure, porosity for the gas and mass transport, chemical and thermal compatibility with the electrolyte, and high conductivity at SOC temperatures.
The advantages of the sol-gel method are producing high purity, homogenous, and stable structured samples [9].
It is known that the all-alkoxide sol-gel method produces samples with high purity and more stable structures, which is visible in the comparison shown in Fig. 1a.
Wilkinson in: Solid State Synthetic Methods, www.chemistry.gatech.edu.
Retrived from www.chemistry.gatech.edu/class/6182/wilkinson/solid-state.pdf. (2001)
Online since: September 2025
Authors: Faried Latief, Andika Fajar, Putri Istichomah, Bagas Haqi Arrosyid, Ratih Amalia, Muhammad Fahroji, Trivadila Trivadila, Akmal Zulfi, Andika Widya Pramono, Alfian Noviyanto
This study investigates the crystalline and chemical structures of PVDF/BF nanofibers with modified formulations.
Crystalline Structure and Microstructure The nanofiber samples were characterized using XRD, as shown in Fig. 3, which illustrates the characteristics of the BiFeO3 crystal structure before and after being composited with a polymer matrix.
Modes E-1, A1-1, A1-2, A1-3, E-2, E-3, and E-5 closely align with the modes of the BiFeO3 material structure.
Tang, Phase evolution, dielectric, ferroelectric, and piezoelectric properties of Bi(Mg0.5Hf0.5)O3–modified BiFeO3–BaTiO3, Materials Today Chemistry 24 (2022) 100825. https://doi.org/10.1016/j.mtchem.2022.100825
Shehata, PVDF nanostructures characterizations and techniques for enhanced piezoelectric response: A review, Materials Chemistry and Physics 325 (2024) 129760. https://doi.org/10.1016/j.matchemphys.2024.129760
Online since: June 2014
Authors: Yuan Sheng Wang, Juan Yu, Gui Ying Lu, Chao Xin Zhou
Intensity Design and Analysis of the Underwater Instrument Cabin Shell Yuansheng Wang 1, 2, a, Guiying Lu 1,b, Chaoxin Zhou 3, 4, c and Juan Yu1, d 1 School of Mechanics and Electrical Information, CUG, Wuhan 430074, China 2 Department of Mechanical and Industrial Engineering, SIUE, Edwardsville, IL 62026, USA 3 Faculty of Material Science and Chemistry, CUG, Wuhan 430074, China 4 Department of Chemistry, Texas A&M University, College Station, TX 77840, USA awangyshper@sohu.com, bluguiying0510@163.com, czhaoxinzhou@cug.edu.cn, dyujuan_326@126.com Keywords: Instrument cabin, Intensity, Elastic deformation, Plastic limit analysis Abstract.
Structure Design of the Instrument Cabin Design of instrument cabin in the seawater mainly includes problems of strength, sealing, corrosion resistance [4-9].
To instrument cabin 2, its outer diameter is Φ220mm, its inner diameter is Φ205mm, its length is 1660 mm. its axial cross-sectional structure is shown as Fig. 1.
Fig. 1 Axial cross-sectional structure of cabin 2 Junctions between cylinder bottom 2 and ear hook plate 1 or cylinder block 9 are welded to a seal whole, and the materials are 304 stainless steel (0Cr18Ni9Ti).
Structure Design of Submersible Pressure Hull. 14th China National Offshore (offshore) Engineering Symposium Proceedings: 2009, pp: 287-294.