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Similar Structure of Solution for Effective Wellbore Radius Model in the Spherical-Shaped Matrix of Dual-porosity Reservoir YongWang1,a, FurongWang2,b, ShunchuLi2,c andDongdongGui3,d 1School of Physics and Chemistry, XiHua University, Chengdu 610039, China 2School of Mathematics and Computer Engineering, Xihua University, Chengdu610039, China 3Beijing Dongrunke Petroleum Technology Co., Ltd., Beijing 100029, China awangyong0104@126.com;b wfr215894604@163.com; c lishunchu@163.com; dgdd05@hotmail.com, Keywords:Dual-porosity reservoir; Spherical matrix; Effective wellbore radius; Similar structure; Similar kernel function Abstract.On the basis of percolation mechanism for dual-porosity, an effective wellbore radius model in the dual-porosity was established, and the Laplace space solution could be obtained by solving this model.
The solution had a similar structure and could be simplified into a unified expression in the different outer boundary conditions.
Li et al. studied the seepage problem in the dual-permeability media reservoir, and found that the pressure expression has a similar structure [6].
Simplify the solution of this model and we find it can be expressed as a uniform expression， that is to say the solution has a similar structure.
a similar structure.

Farhadyar2,d 1Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran 14778 92855, Iran 2Department of Chemistry, Varamin-Pishva Branch, Islamic Azad University, Varamin 1983963113, Iran arostam_somayyeh@yahoo.com, bm.s.sadjad@gmail.com, ckmzare@gmail.com, dnfarhadyar@gmail.com.
The results revealed that all the samples maintain the ferrite spinel structure.
Structure of these magnetic ferrite NPs, MFe2O4 (M = Fe, Co), is cubic inverse spinel formed by oxygen atoms in a closed packing structure where, M+2 and Fe+3 occupy either tetrahedral or octahedral sites.
The results of D values, using 311 planes of the spinel structures were 13.36, 35.4 and 21.4 nm respectively. .
Kenneth, “Nanoscale Materials in Chemistry”, John & Sons, Inc. (2001)

Controlled synthesis of calcium carbonate crystals with superstructure on the templates of bamboo leaves /Mg2+ Yiping Wu1,2 1 School of Chemistry and Chemical engineering, Anqing Normal College, Anqing 246011, China 2 School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, P.
Different morphologies and structures of the products were obtained by adjusting the concentration ratio of Mg2+ to Ca2+.
We can see clearly the rule structures of the crystals from the amplifier fig of Panels D.
The products with different morphologies and structures of were obtained by adjusting the concentration ratio of Mg2+ to Ca2+.
So we can conclude that the cooperative interactions between the bamboo leaves and Mg2+ ion have obvious effects on the morphologies and structures of CaCO3 crystals.

Synthesis of novel monomer with Quinoxaline Derivatives ZHANG Peilin1,a, HU Tao1,b, SUN Xiaoxia 1,c * 1Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, People’s Republic of China azhangpeilin9092@163.com; bhutao613077@163.com; csunxiaoxia77@126.com; Keywords: donor-acceptor; organic molecule; light-emitting material Abstract: Novel rigid dendrimer containing cross-conjugated units are synthesized from the coupling of 2-thiophene -based dendron with 5,8-dibromo-2,3-dithienylquinoxaline.
The structure of the monomer was determined by H-NMR and C-NMR technologies.
Rigid dendritic molecules with well-defined structures and shapes are potentially useful in fabricating nanoscale optical and electronic devices for nanotechnology.
The structure of the monomer was characterized by H-NMR technologies and C-NMR technologies.
Polymer Chemistry, 47(2009) 3399.

The unique structure and physical properties of the QD fluorescent labels ensure their competitive advantage over colorimetric labels.
De Saeger, Trends in Analytical Chemistry, 46 (2013) 30-43
Zherdev, Trends in Analytical Chemistry, 55 (2014) 81-93
Dzantiev, Analytical and Bioanalytical Chemistry, 405 (2013) 4997-5000
Norde, A. van Amerongen, Analytical Chemistry, 85 (2013) 3723-3729

RESULTS A�D DISCUSSIO� Chemical structure of the product.
Its chemical structure was identified by FTIR, EI-MS, and 1H NMR analysis.
Chemistry and Industry of Forest Products, Vol.14, No.1 (1994), p.68-73
Studies on synthesis, structure and biological activities of rosin derivatives.
Chemistry and Industry of Forest Products, Vol.18, No.3(1998), p.67-73

Scheme 1 The structures of BOPIM-ma (left) and BOPIM-dma (right).
Computational details Theoretical calculations in gas phase were performed using the quantum chemistry software package GAMESS platform [6].
All of the fully optimized structures were confirmed to exhibit the minimum energy structures by frequency calculations (none of imaginary frequency).
This red shift is accompanied by a loss of fine structure and an increase of the bandwidth, which is a typical phenomenon for an emission from a TICT state.
General Atomic and Molecular Electronic Structure System [J].

Most research works used beta-cristobalite glass structure as a reference to amorphous silica structure.
Therefore, this atomic structure can served as a reference model for future research works on amorphous structures.
Journal of Physics and Chemistry of Solids, 1971. 32(8): p. 1935-1945
Warren, The structure of vitreous silica.
The journal of physical chemistry letters, 2016. 7(7): p. 1198-1203

The formation of a stable anatase structure due to the adsorption of Ni2+ on the surface of TiO6 octahedron units through hydrogen bonding modified the legend structure and enabled the control of hydrolysis and poly-condensation reactionsretarded the phase transformation [8, 9].
However, too much Ni2+ limits transportation of electrons due to a saturated bond structure.
Hoffmann, The role of metal ion dopants in quantum-sized TiO2: correlation between photoreactivity and charge carrier recombination dynamics, Journal of Physical Chemistry 98 (1994) 13669–13679
Cheng, Low temperature chemically sintered nano-crystalline TiO2 electrodes for flexible dye-sensitized solar cells, Journal of Photochemistry and Photobiology A: Chemistry 213(2010) 30–36
Zhang,M.Anpo, Preparation of controllable crystalline titania and study on the photocatalytic properties, Journal of Physical Chemistry B 109(2005) 8673

Understanding Chemistry of Black Coating in Ancient Bidriware and Attempt to Obtain Similar Coats on Pure Copper and Yellow Brass J.J.S.
In this work, this black patination has been investigated to understand the chemistry behind it.
Introduction The material of zinc of 96 percent and 2 percent of copper, which is a zinc-based alloy that is reacted with the potassium nitrate and ammonium chloride for the formation of patina, this is the solution with which copper and brass are not reactive, this gave the initiation for the current project which is the detailed study of patination as its composition, structures and all the properties which are unknown through the literature survey.