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Preparation, Characterization of P(AA-AM)/ Organic Montmorillonite Super Absorbent Resin under Focused Signal-Mode Microwave Irradiation Lai Shuilia, Gao Yinghuab Key Laboratory of  Auxiliary Chemistry & technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi'an, 710021, Shaanxi, China; alsl25206@163.com, bgaoyinghua1984@126.com Keywords: Focused signal-mode microwave irradiation; Organic montmorillonite; Acrylic acid; Cetyltrimethylammonium bromide; Super absorbent resin Abstract.
Modified montmorillonite is a multifunctional material, it was used as a raw material for preparing superabsorbent composites because of the layered structure[8].
In the intercalated structure, the band shifts to 2921.03 cm-1 may be due to the increase of the available space in the interlayer space.
However, in Figure 3b, the morphology of OMMT is completely stripped, and we can see the layered and exfoliated structure.

Burning the rice husk at too high temperature for a too long period will cause the silica substance turn into crystalline structure which means the reactivity of the RHA is generally reduced.
Density plays a significant role in reducing load applied on a structure in construction.
This reduction in weight of the brick gives extra credit to the usage of BRHA in brick application where it can reduce the permanent load to the structure.
Chemistry, Processing and Utilization. p, 207-246. (2019)

The reversible voltage losses mostly are related to partial flooding of transport structures in the bipolar plate and the GDL and partially to contamination effects, which disappear after stopping the contaminations in the fuel or/and air flux.
A B 0.3 0.4 0.5 0.6 0.7 0.8 0 100 200 300 400 500 600 700 Time / h Cell voltage / V a) metal bipolar plate + mesh (1.4401), direct elektrode contact b) metal bipolar plate + mesh (1.4404), intermediate layer c) metal bipolar plate + Ti mesh, intermediate layer d) graphite bipolar plate 1.4404 (V4A) mesh with intermediate layer graphit Ti mesh with interm. layer 1.4404 (V4A) mesh without intermediate layer Fig. 7: Cell voltage vs. operating time for bipolar plates of different materials GDL durability In most cases the GDL is treated with PTFE to prevent flooding of the porous structures.
In analogy to the membrane decomposition PTFE inside the porous structure could also be degraded thus leading to a change in the wetting behavior of the GDL.
Roduner: Physical Chemistry Chemical Physics, 2004, 6, 2891 - 2894 A B C

Synthesis and Electroluminescent Properties of Fluorene-Based Three-Component Red Light-Emitting Copolymers Qiong Hou1, a, Dandan Ruan1, b, Lintao Hou2, c and Hong Zhu1, d 1School of Chemistry and Environment, South China Normal University, Guangzhou, China 510006 2Department of Physics, Jinan University, Guangzhou, China 510632 ahouqiong@scnu.edu.cn, brdd122@163.com, chlt501@21cn.com, dzhuhong201@sina.com Keywords: Fluorene; Carbazole; Three-Component Copolymers; Hole Mobility Abstract.
Fig. 1 UV-Vis absorption spectra of copolymers PFO-Cz-DBT15 in film Fig. 2 PL spectra of copolymer PFO-Cz-DBT15 in film under 325nm excitation Table 1 Device performance of the three component copolymers PFO-Cz-DBT15 with the device structures: ITO/PEDT/polymer/Ba/Al Copolymers Photoluminescence λEL /nm Device performance λPL/nm QPL /% V I/mA cd/m2 Qext/% PFO-Cz1-DBT15 667 65.5 655 6.6 1.1 67 1.71 PFO-Cz5-DBT15 666 63.5 654 6.5 7.9 448 1.49 PFO-Cz10-DBT15 663 60.6 651 11.8 1.9 136 1.81 PFO-Cz15-DBT15 661 38.3 649 12.5 5.2 151 0.72 PFO-DBT15 678 7.9 663 5.1 5 259 1.4 The electrochemical properties of the copolymers were investigated by cyclic voltammetry (CV) in order to measure their electronic properties.
Compared with the same device structure of the PFO-DBT15 copolymer, the external quantum efficiency increased.
So the external quantum efficiency of three-component copolymers is increased compared with the same device structure of the PFO-DBT15 copolymer.

One is physical method, which acquires the model structure and model coefficients according to the analysis of physical process and a large number of experiments4.
After the network structure BP (n,q,m) is determined, supposing there are altogether P training samples, the information of the pth (p=1,…P) input training sample is transferred forward first to the hidden unit to generate the output information of the hidden layer after being activated by the activation function 10： （1） After the output information in the hidden layer is transferred to the output layer, the output result is shown as follows: （2） If there exists an error between the network output and the desired output , then we can define the error sum of square as follows: （3） On the basis of the defined in the above formula and by means of the error back propagation learning algorithm, the formula for adjusting network weight is obtained as follows: （4） The weight value is adjusted until the error between the network output and the desired output meets certain
This method has the advantage of reducing the dimension of the data and simplifying the structure of prediction model.
Computer Chemistry Engineering, 1997, 21(9): 951-963

Cellulose, which has the structure of polyhydroxyl, is the most abundant natural polymer in nature.
This method could be called “high energy technology” in the organic synthesis chemistry.
This leads to cellulose particles extrusion and its loose structure, which is good for CHPTMA permeating into cellulose particles, to improve the Zeta-potential of cationic cellulose.
And the structure of cationic cellulose is characterized with IR and X-ray analysis.

Fabrication of Super-hydrophobic Textile Surface with Aminopolysiloxane and Nano-silica via a Solution Immersion Process Lifen Hao 1, a, Qiufeng An1, Wei Xu1 Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xian, 710021, P.
Fig. 1 Chemical structure of ASO-1 Pretreatment of textile fabric Textile fabrics were cut into pieces of sheets with 2 cm×1cm utilized as samples.
It has a tightly woven, fibrous structure at a magnification of 50 and grooves or slender concaves on its single fiber surface at a magnification of 50000.
It is well known that wetability of a super-hydrophobic solid surface is determined by its chemical compositions and geometry micro-structures [7].

-S.Kwon 3,c 1 Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze, 18, Novosibirsk, 630128, Russia 2 Lavrentiev Institute of Hydrodynamics SB RAS, pr.Lavrentieva, 15, Novosibirsk, 630090, Russia 3 Research Center for Machine Parts and Materials Processing, School of Materials Science and Engineering, University of Ulsan, San-29 Moogu-2 Dong, Namgu, Ulsan 680-749, Korea E-mail: a dudina@solid.nsc.ru, b vmali@mail.ru, c jskim@ulsan.ac.kr Keywords: shock-wave synthesis, compaction, nanocomposites, titanium diboride.
%Cu mixture activated for 2 min shows two-zoned structure (Fig. 4, a): external (peripheral) layer 1,5 mm thick (zone 1, Fig. 4, b) and the inner (central) part (zone 2, Fig. 4, c).
The zoned structure of the compact is due to the geometrical effects of the interaction of the shock wave with a material in a cylindrical ampoule.
In composite structures with increased interfaces formed from Ti and B powders plastically deformed with copper matrix during MA, heat dissipation from the reaction zone was accelerated that also favored formation of the fine particles of the product.

Structure frame of the thermal power system which uses oxyhydrogen energy The whole system adopts the closed-cycle technology way to solve the problems that open-circle encountered.
The structure frame of the thermal power system which uses oxyhydrogen energy is as Fig 1.The major parts of the system is as follows: 1) Oxygen generated system By way of heating the perchlorate, the system generates oxygen at real time and controls the formation speed of oxygen according to the real needs, generally adopting the perchlorate of metal like potassium perchlorate and lithium perchlorate, the perchloric acid amine is not adopted, because of its thermal decomposition can generate other kinds of gases except oxygen.
Fig. 1 Structure of the thermal power system 2) Hydrogen generated system Through the reaction of powdered aluminium and seawater, the system generates hydrogen at real time , and use the energy that the reaction releases to heat the water that don’t react, also let the temperature of the aluminum-water reaction device down.
The methods of breaking the external Al2O3 are as follows: make the temperature higher than the melting point of oxide, make the oxide outer covering burst by way of the affection of outside force and add other kind of chemistry matters to react with the oxide on and on.

The crystal-structures of the films were confirmed by the X-ray Diffraction (XRD).
All of TiO2 films are detected as a same TiO2-Rutile structure.
All of TiO2 films are detected as a same TiO2-Rutile structure.
Rahman, et al.: Journal of physics and chemistry of solids 60(1999), pp. 201 [6] S.