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Preparation of Square and Labyrinth-like TiO_2 Particles for Photo-Degradation of Organic Pollutants

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Acta Metallurgica Sinica(English Letters) 2014年第6期27卷 988-994页

作者： Yongjie Yan Shasha Zhang Guohua jiang Xia li Zhen Wei Wenxing Chen Junmin Wan Qixin Honours College Zhejiang Sci-Tech University Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT) Ministry of EducationZhejiang Sci-Tech University Department of Materials Engineering Zhejiang Sci-Tech University

Square and labyrinth-like titanium dioxide particles were successfully synthesized by a simple hydrothermal method with assistant of halloysite nanotubes. The morphology and microstructure of as-prepared photo-catalysts were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The photo-catalytic activity of as-prepared catalysts was evaluated by degradation of organic pollutants（Rhodamine B, methylene blue and methanol） under UV light irradiation.

关键词： Microstructure Photolysis Decomposition

Rheological behavior of hydrolyzed polyacrylamide solution flowing through a molecular weight adjusting device with porous medium

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Chinese Journal of Chemical Engineering 2016年第5期24卷 581-587页

作者： Lvhong Zhang jiangtao Wang Yuqi Zhang Bin jiang Xiaoming Xiao li Hao School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China National Engineering Research Center for Distillation Technology Tianfin 300072China

The separate-layer injection in different interlayers and the injection of the same-molecular-weight polymer so- lution in a layer are necessary in the polymer flooding process because of heterogeneous multilayer sandstone reservoirs in EOR projects. To alleviate the matching problems between the layer permeability and the injected polymer molecular weight, a molecular weight adjusting device with porous medium was designed on the basis of mechanical degradation principle. In terms of four variables （polymer concentration, pore diameter, length of shear component and flow rate ）, the theological behavior of hydrolyzed polyacrylamide （HPAM） solu- tion flowing through the device was investigated in detail. The change of these variables is able to control the shear rate of HPAM solutions through ceramic foam, and achieve the desired degree of shear degradation and the final theological parameters-viscosity loss, viscoelasticity and pressure drop. Therefore, a linear relationship between viscosity loss and shearing rate was established so as to obtain the targeted viscosity easily. Field tests in the Daqing Oil Field showed that the polymer molecular weight could drop 20% to 50%. In a word, the results could guide the industrial application of the novel device and the further study of polymer degradation flowing through the porous medium.

关键词： Molecular weight adjusting device Polymer solution Rheological behavior Mechanical degradation Porous medium

Magnetically responsive manipulation of droplets and bubbles

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Droplet 2024年第2期3卷 73-94页

作者： Shaojun jiang Dong Wu Jiawen li Jiaru Chu Yanlei Hu CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Precision Machinery and Precision InstrumentationUniversity of Science and Technology of ChinaHefeiChina

Droplets and bubbles have a wide range of applications in industry,agriculture,and daily life,and their controllable manipulation is of significant scientific and technological *** magnetically responsive manipulation strategies have been developed to achieve precise control over droplets and *** manipulate nonmagnetic droplets or bubbles with magnetic fields,the presence of magnetic medium is *** additives can be added to the surface or interior of droplets and bubbles,allowing for on-demand manipulation by direct magnetic ***,magnetically responsive elastomer substrates can be used to actuate droplets and bubbles by controlling the deformation of microstructures on the substrates through magnetic *** strategy is based on untethered magnetic devices,which enables free mobility,facilitating versatile manipulation of droplets and bubbles in a flexible *** paper reviews the advances in magnetically responsive manipulation strategies from the perspective of droplets and *** overview of the different classes of magnetic medium,along with their respective corresponding droplet/bubble manipulation methods and principles,is first ***,the applications of droplet/bubble manipulation in biomedicine,microchemistry,and other fields are ***,the remaining challenges and future opportunities related to regulating droplet/bubble behavior using magnetic fields are discussed.

关键词： deformation bubble versatile

A Hybrid Channel Stock Model for Stock Price Forecasting with Multifaceted Feature Fusion

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Data Intelligence 2024年第3期6卷 792-811页

作者： Zhiyu Xu Yong Wang Yisheng li Lulu Zhang Bin jiang School of Artificial Intelligence Chongqing University of TechnologyChongqing 401135China

Stock market is volatile and predicting stock prices is a challenging *** prices are influenced by multiple factors,and prediction using only numerical or image features is *** solve this problem,we propose a Hybrid Channel Stock model that incorporates multiple features of basic stock data,K-line charts and technical indicator factors for predicting the closing price of a stock on day n+*** model combines multiple aspects of data and uses a multi-channel structure including improved CNN-TW,bidirectional LSTM and Transformer ***,we construct the multi-channel branches of the multi-faceted feature fusion input network model;second,in this paper,we will use the concatenate method to stitch the output of each branch as the input of the rest of the network;the last layer in the network is the fully connected layer,which combines the linear activation function regression to output the predicted ***,we conducted extensive experiments on the Dow 30,SSH 50 and CSI100 *** experimental results show that the Hybrid Channel Stock method has the best performance with the smallest MSE,RMSE,MAE and MAPE compared with existing *** addition,the experiments on different trading days validate the stability and effectiveness of the model,providing an important reference for investors to make stock investment decisions.

关键词： Stock Price Forecast Hybrid Channel Stock model CNN-TW Multi-channel Multifaceted feature

BASIC CURVIliNEAR COORDINATE EQUATIONS OF ELECTROELASTIC PLATES UNDER BIASING FIELDS WITH APPliCATIONS IN BUCKliNG ANALYSIS

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Acta Mechanica Solida Sinica 2002年第3期15卷 189-200页

作者： Hu Yuantai Chen Chuanyao li Guoqing Yang Jiashi jiang Qing Department of Mechanics Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Structural Analysis of Industrial Equipment Dalian University of TechnologyDalian 116023China Department of Engineering Mechanics University of NebraskaLincolnNE 68588USA Department of Mechanical Engineering University of CaliforniaRiversideCA 92521USA

The authors have developed a two-dimensional model for the extension and flexure response of electroelastic plates under biasing fields in a curvilinear coordinate system. Applications of the model in analyzing buckling of two circular piezoelectric plates, one single-layered and the other double-layered, are included. The analysis indicates that the piezoelectric coupling has a strengthening effect against buckling.

关键词： biasing fields piezoelectric plate buckling

Single door laminoplasty plus posterior fusion for posterior atlantoaxial dislocation with congenital malformation:A case report and review of literature

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World Journal of Clinical Cases 2020年第23期8卷 6136-6143页

作者： Yi Zhu Xie-Xing Wu An-Qing jiang Xue-Feng li Hui-lin Yang Wei-Min jiang Department of Orthopaedic Surgery The First Affiliated Hospital of Soochow UniversitySuzhou 215000Jiangsu ProvinceChina

BACKGROUND Posterior atlantoaxial dislocation(PAD)is a rare type of upper cervical spine *** sought to describe a unreported case of old PAD with os odontoideum(OO)and atlas hypoplasia(AH)and our unique treatment approach consisting of C1 single door laminoplasty with C1-3 posterior fixation and *** SUMMARY A 70-year-old male patient who suffered from progressive aggravating numbness and limb weakness for 4 years without trauma,was diagnosed with old PAD with OO and *** patient underwent closed reduction and C1 single door laminoplasty with C1-3 posterior fixation and fusion instead of C1 laminectomy with occipitocervical *** the 3-year follow-up,he was able to walk by himself instead of using a wheelchair and with a±25°range of head rotation as well as a±10°range of ***-year follow-up images showed satisfactory reduction and *** C1 single door laminoplasty with cervical fusion in PAD combined with spinal cord compression could be a suitable and effective surgical *** with laminectomy and occipitocervical fusion,it retains more cervical range of motion,has a smaller incision and provides an adequate bone grafting space for atlantoaxial fusion.

关键词： Posterior atlantoaxial dislocation C1 laminoplasty Os odontoideum Atlas hypoplasia Case report

Synthesis and Crystal Structure of a 1-D Coordination Polymer {[Cu(NIT4py)_2(ip)]·6H_2O}_n

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Chinese Journal of Structural Chemistry 2006年第2期25卷 214-218页

作者： WANG Shu-Ping GAO Dong-Zhao liAO Dai-Zheng jiang Zong-Hui YAN Shi-Ping li li-Cun Department of Chemistry Nankai University Tianjin 300071 China State Key Laboratory of Structural Chemistry Fujian Instituteof Research on the Structure of MatterThe Chinese Academy of Sciences Fuzhou 350002 China

A new complex { [Cu（NIT4py）2（ip）]·6H2O }, （NIT4py=2-（4＂-pyridinyl）-4,4,5,5-tetra methylimidazoline-1-oxyl-3-oxide and ip = isophthalate dianion） has been synthesized and structurally characterized by X-ray diffraction. It crystallizes in orthorhombic, space group Cmcm with a = 25.161（3）, b =10.045（1）, c = 15.450（2） A°, C32H48N6O14CU, Mr = 804.30, V= 3904.8（8） ,A°^3, Z = 4, De = 1.368 g/cm^3, μ（MoKa） = 0.630 mm^-1, F（000） = 1692, the final R = 0.0326 and wR = 0.0787 for 1843 independent reflections with Rint = 0.0372. Each Cu（Ⅱ） ion is four-coordinated by two carboxylate oxygen atoms and two pyridyl-N atoms from NIT4py radicals to furnish a rhombus geometry. The central Cu（Ⅱ） ion is located at an inversion center and a crystallographic two-fold axis. Each isophthalate dianion binds two Cu（Ⅱ） ions in bis-monodentate mode, leading to a 1-D chain, a＇ these 1-D chains are further linked into a 2-D network via hydrogen-bonding interactions.

关键词： crystal structure nitronyl nitroxide radical copper(Ⅱ) coordination polymer isophthalate

Equilibrium Phase Behavior of Ethylene Glycol/Glycerin＋RbNO3/CsNO3＋H2O at 288.15 and 298.15 K

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Chemical Research in Chinese Universities 2014年第6期30卷 978-986页

作者： ZHANG Huiying li Shuni ZHU Weiwei ZHAI Quanguo jiang Yucheng HU Mancheng Key Laboratory of Macromoleeular Science of Shaanxi Province School of Chemistry and Chemical Engineering Shaanxi Normal University Xi 'an 710062 P. R. China School of Chemical and Biological Engineering Hechi University Yizhou _546300 P. R. China

The solubilities, densities and refractive indices for the four ternary systems ethylene glycol/glycerin＋ RbNOJCsNO3＋H20 were measured with mass fractions of ethylene glycol or glycerin in a range of 0 to 1.0 at 288.15 and 298.15 K. In all the cases, the presence of either ethylene glycol or glycerin significantly reduces the solubilities of the rubidium nitrate and cesium nitrate in aqueous solution, but the refractive indices increase with the increase of mass fraction of either ethylene glycol or glycerin. The density, refractive index and solubility of the saturated ternary systems were correlated with each other via polynomial equations. In addition, the refractive indices and densities of unsaturated solutions were also determined for the four ternary systems with different salt concentrations, which were correlated with the salt concentration and proportion of ethylene glycol or glycerin in the solution.

关键词： Ethylene glycol Glycerin Solubility Density Refractive indice Rubidium nitrate/cesium nitrate

Structural and magnetic properties of ZnFe_2O_4 films deposited by low sputtering power

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International Journal of Minerals,Metallurgy and Materials 2012年第10期19卷 964-968页

作者： Jin-long li Zhong Yu Ke Sun Xiao-na jiang Zhong-wen Lan State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China Chengdu 610054 China No. 24 Research Institute of China Electronics Technology Group Corporation Chongqing 400060 China

To validate the correctness of the Hartman-Perdok Theory （HPT）, which indicates that the { 111 } planes have the lowest surface energy in spinel ferrites, the {111} plane orientated ZnFe204 thin films on Si（100）, Si（111）, and SIO2（500 nm）/Si（111） substrates were obtained through a radio frequency （RF） magnetron sputtering method with a low sputtering power of 80 W. All of the experiments prove that the atom energy determined by sputtering power plays an important role in the orientated growth of the ZnFe204 thin films, and it matches well with HPT. The ZnFe2O4 thin films exhibit ferromagnetism with a magnetization of 84.25 ld/mol at room temperature, which is different from the bulk counterpart （antiferromagnetic as usual）. The ZnFe204 thin films can be used as high-quality oriented inducing buffer layers for other spinel （Ni, Mn）Zn ferrite thin films and may have high potential in magnetic thin films-based devices.

关键词： thin films magnetron sputtering crystal orientation film growth surface energy ferromagnetism