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Preparation of AZO Nanometer Powders by Combustion Synthesis Using Dual Fuel Xiaoxia Liu 2,b, Liuying Peng 1, a, Guihua Peng 1, a and Zhenhua Liang 1, a 1Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources (Ministry of Education of China), School of Chemistry & Chemical Engineering of Guangxi Normal University, Guilin, Guangxi, 541004, China 2College of Arts & Science of Jianghan University, No.9 Boxue Road, Economic and Technological Development Zone, Wuhan, Hubei, 430056, China apengguihua164@163.com, bxiaxiaoliu@126.com Keywords: AZO powders, Combustion synthesis, Dual fuel Abstract.
The crystal structure of the samples was characterized by Rigaku D/max 2500V/PC X-ray diffraction (XRD) made in Japan.
Zn2+ was replaced by Al3+ and formed Al/ZnO solid solution and maintains the lattice structure of ZnO.
These results indicated that the synthesized AZO powders were single phases with a hexagonal wurtzite structure.
Fig.3 shows that the particles of S1 sample only using single fuel are connected together with honeycomb structure.

Titania nanotube arrays load with Ibuprofen by solvothermal and its release behavior Zhang Wang1, a, Ping Li2, b, Fei Luo1, c, Dan Mao1, d and Xiu-feng Xiao1, e,* 1College of Chemistry and Chemical Engineering, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350007, P.
TNTs with excellent biocompatibility, controllable dimensions, surface chemistry and high surface-to-volume ratio of their nanotube structures were demonstrated to be superior platforms for local drug delivery applications [7,8].
In order to convert the phase of titanium to anatase structure, the sample was annealed at 450 ℃ for 2hours in air with a heating rate of 5 ℃ per minute.
Characterization.The morphology of samples was observed by a field emission environment scanning electron microscope (JSM-7500F, FE-SEM).The crystal structure of the sample was analyzed by using an X-ray diffractometer using Cu Ka radiationand.
It can be fuond that the nanotubes structures were neatly and uniformly arranged over the anodized titanium surface in Fig.1a.

Research revealed all three coatings possessed compact and tight surface structure with excellent thermodynamic stability.
While Ni-W-P coating demonstrated a microcrystalline structure, both Ni-Co-P and Ni-Cu-P were amorphously structured.
This indicated a prevention of the crystal growth by co-deposition of atom Cu, Co and W, rendering an improvement in compactness of the cellular structure and evenness of the surface[4-5].
X-ray diffraction analysis revealed a sharp diffraction peak of Ni-W-P coating approximate around 2θ≈45°, indicating its characteristics of microcrystalline structure.
[16] Hu C，Bai：Materials Chemistry and Physics. 80(2003)，p.215

The structure of yttria-stabilized zirconia is transformed to a tetragonal form at 400 oC and 500 o C.
Furthermore, it tends to form a cubic structure at 600 oC.
Introduction Yttria-stabilized zirconia (YSZ) is a zirconium-oxide based ceramic, in which the particular crystal structure of zirconium oxide is made stable at room temperature by an addition of yttrium oxide or yttria (Y2O3) as tetragonal and cubic structure [1].
Li: Hydrated Surface Structure and its Impacts on the Stabilization of t-ZrO2.
Journal of Solid State Chemistry. 180 (2007), 2790-2797

Around those points the band structure is almost linear, see Fig.°2(b).
But then it turned out over the last decade that the chemistry of small boron clusters is completely different [20].
And the resulting structures are quasi-planar or tubular rather than icosahedral.
In order to get a feeling for the chemistry of compound boron-carbon nanomaterials, we have to familiarize ourselves with the strange nature of elemental boron chemistry.
This study revealed a lot about the basic chemistry of compound boron-carbon nanomaterials.

Study on Prediction Model of Dissolved Oxygen about Water Quality Monitoring System based on BP Neural Network Jingxin Yan1, b, Lijuan Yu1, a*, Wenwu Mao1, c, Shouqi Cao1, d 1College of Engineering Science and Technology, Shanghai Ocean University, Shanghai, China ayjx1031730916@163.com, bljyu@shou.edu.cn, cwwmao@shou.edu.cn, dsqcao@shou.edu.cn Key words: Eriocheir sinensis; IOT; dissolved oxygen prediction BP Neural Network; Matlab Abstract: Eriocheir sinensis should cultivate in high water quality ponds, which is affected by many combined factors such as physics, chemistry, biology etc.
Introduction The quality of Eriocheir sinensis is related to the culture pond water quality closely which is influenced by combination factors, such as physics, chemistry, biology, etc.
Back propagation neural network (BP neural network), including input layer, hidden layer and the output layer, and the hidden layer is a multi-storey structure, the transfer function of the neurons are S-type functions.

The surface structure of the WSe2 were studied using scanning tunneling microscopy.
The hexagonal crystal structure of WSe2 belongs to the space group D6h4-P63/mmc [12, 13].
The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets, Nat.
Band Structures of Transition-Metal-Dichalcogenide Layer Compounds, Phys.
Single Photon Emitters in Exfoliated WSe2 structures, Nat.

The microstructure and mechanical properties were strongly influenced by the sintering additive composition, which determines the chemis- try and structure of IGP.
Therefore, manipulating the composition of additives, and thus, the glass chemistry, can play a significant role not only in determining high temperature properties, but also in controlling the crack propagation behavior.
Core/rim structures in Fig. 1 indicate that grain growth has taken place through a solution-reprecipitation mechanism [6].
Meanwhile, the cations of additives incorporated into the structure of glass alter the physical properties, force balance and, in turn, the thickness of the IGP.
Conclusions Microstructure and mechanical properties of liquid-phase-sintered SiC ceramics with Re2O3 (Re=Er, Lu, Sc)-AlN were affected by the chemistry of sintering additives.

The structure of the synthesized nanoparticles is elucidated with the help of XRD, as shown in Fig. 4 (E).
Furthermore, the cell wall structure of the bacteria is also an important factor.
The XRD micrographs explained that nanoparticles possess a crystal structure.
Oluwafemi, Biosynthesis protocols for colloidal metal oxide nanoparticles, Nano-Structures & Nano-Objects 16 (2018) 288–299. https://doi.org/10.1016/j.nanoso.2018.07.010
Phytochemical extraction, characterisation and comparative distribution across four mango (Mangifera indica L.) fruit varieties, Food Chemistry 149 (2014) 253–263

Introduction The pharmaceutical chemistry significantly focuses on efforts for new chemical entities and reliable scaffolds of structure with application in the field of therapies.
Speculation of new structures, edit and unveil new protein structures.
It is convenient for molecular modelling, bioinformatics, chemical property analysis, solid-state materials, inorganic or organic chemistry.
PyMOL is useful for viewing 3D molecular structures.
PyMOL can be used for animation of molecular structures dynamically.