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Online since: December 2010
Authors: Ming Shu Tang, Zhi Bin Zhang, Ling Ling Xu
Synergistic Effect of MgO-based Expansive Agent and Shrinkage Reducing Admixture on Compensating the Shrinkage of Cementitious Materials Zhibin Zhang 1, a, Lingling Xu 2,b and Mingshu Tang 2 1College of Biology, Chemistry and Material Science, East China Institute of Technology, NO.56 Xuefu Road, Fuzhou, P.
This so-called shrinkage cracking is a major concern for concrete, especially for flat slab structures such as dams and highway pavements, et al.
Online since: September 2011
Authors: Ying Chun Li, Xiao Xia Sun, Qiang Qiang Chen, Li Li, Xiao Xiao Zhuang, Ya Zhou Lou
Synthsis of [1,2,5]thiadiazolo[3,4-c]pyridine: A Novel analogue to BT SUN Xiaoxiaa, LOU Yazhoub, CHEN Qiangqiangc, LI Lid, ZHUANG Xiaoxiaoe, Li Yingchunf Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, People’s Republic of China asunxiaoxia77@126.com; blouyazhou@163.com; ccjq891270@126.com; dlilyer2002@163.com; ezhuangxiaoxiao1987@163.com; flyc8751902@163.com Keywords: Low-Bandgap; Donor-acceptor; light-emitting devices; Abstract: Heterocyclic electron-poor monomer [1,2,5]thiadiazolo[3,4-c]pyridine have been synthesized in high yields over five steps from readily available starting materials.
Figure 1 Structures of BT, BBT, TQ With the perspective of conjugated heterocycle electron-deficient units, we report the synthesis route (figure 2) of the new analogues [1,2,5]thiadiazolo[3,4-c]pyridine to BT, and the propensity of the new monomers will be researched.
Online since: December 2012
Authors: Xiao Zhi Gu, Kai Ning Chen, Wei Huang, Xiang Bai, Cheng Xin Fan
In the present study, the results showed that wetland plants may influence sediment physical structure and porewater molecular diffusion .
Bao, in: Analysis of soil and agricultural chemistry, 2nd ed.
Online since: July 2012
Authors: Guang Chao Du, De Jun Fei, Jian Xun Wu, Ya Gu Dang, Yong Liu, Jie Xu
A process to improve the filtration aiding performance that two polymers of different chemistry were injected into the phosphoric acid slurry at different time has been studied.
The filtration rate and the moisture of the filter cake in the PAM group are higher than that of PADA group, which may be caused by the differences in molecular weights and molecular structures between these two filter aids.
Online since: July 2013
Authors: Cheng Teng Pan, C.Y. Liu, Z.H. Liu, C.H. Chao, W.C. Wang
To analyze the natural photonic structures, Wang et al. [8] studied the photonic structures of butterfly wings and conducted structural analyses using FIB.
White, Orientation preferred structures in BaTiO3 thin films on Ni substrates, J.
Jindal, Structure and elastic modulii of silicon nanotubes, J.
Wu, Fabrication of 3-D submicron glass structures by FIB, J.
Fontaine, High aspect ratio GaAs nanowires made by ICP-RIE etching using Cl2/N2 chemistry, Microelectron.
Online since: May 2020
Authors: Zheng Li, Zi Jian He, Ying Cheng Zhou, Yi Tang, Yu Fang Chen, Tao Jin
The surface of cotton fiber appears coating-particles structure after using suitable concentration DMSO treatment (Fig. 6d).
The surface of the HMCFC was rough and showed a layered structure of adhesion (Fig. 7b), it makes Rq up to 184 nm.
This structure is mainly caused by the interaction of the adhesion layered structure produced by the DMSO activation treatment and the non-polar polymer microsphere particles produced by the grafting process.
This rougher structure allows the hydrophobicity and hydrophobic stability of the HMCFC to be greatly improved.
In the microscopic morphology, the HMCFC prepared by the DMSO treatment exhibits a coating-granular structure.
Online since: December 2024
Authors: Mostafa A. Shohide
This can lead to premature failure of concrete structures.
By taking these steps, engineers can ensure that concrete structures will perform well and last for many years [1-3].
Also, reduce the pore content and enhance the pore structure of concrete and mortar to some extent.
This is due to the enhancement of concrete pore structure by the filling effect [37].
O’Hare, Intercalation chemistry of layered double hydroxides: recent developments and applications, Journal of Mater.
Online since: October 2022
Authors: Li Jin, Jian Wei Zhang, Su Ju
Zhang[4] et al mixed PEDOT: PSS solution treated with sulfuric acid and reduced graphene oxide to make composites, and the introduction of reduced graphene oxide would trigger the main chain structure of PEDOT to change from benzene structure to quinone structure, thus achieving the transfer of charge and making the conductivity improve.
Structure and Performance Test Characterization.
The PEDOT:PSS/CNT/IL composite film has obvious phase separation structure and many small-sized voids.
The phase-separated structure is caused by IL-induced delocalization of PEDOT:PSS.
Chemistry - An Asian Journal, 2015. 10(1): p. 149-153
Online since: May 2023
Authors: Nathera Abbas Ali, Ammar Mukhlif Jasim
The creation of activated carbon resulted in a flaw in its crystalline structure, making it a porous substance.
Activated carbon with shifting pore structures was arranged in this manner.
The influence of the drying period on the crystallographic structure.
The pore structure and lack of peaks were confirmed by XRD spectra from TCs.
Biswick, Synthesis and characterization of activated carbons prepared from agro-wastes by chemical activation, Journal of Chemistry, vol. 2022, Article ID 9975444, (2022)
Online since: March 2019
Authors: Alexander Kodentsov
The low-case letters relate the structure to the appropriate composition on the isotherm.
Kodentsov, Interfacial chemistry: Reactions in inorganic systems, Pure Appl.
Kodentsov and F.J.J. van Loo, Metallization of SiC ceramics: Chemical aspects, in: High Temperature Materials Chemistry, K.
Gyrmati, Interface structure and reaction kinetics between SiC and thick cobalt foils, J.
Petuskey, Phase chemistry in the Ti-Si-N system: Thermochemical review with phase stability diagrams, J.