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Hydrothermal synthesis of Ce: Lu_(2)SiO_(5) scintillator powders

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Journal of Rare Earths 2009年第5期27卷 801-805页

作者： YUN Ping SHI Ying zhou ding XIE Jianjun Department of Electronics and Information Materials School of Materials Science and EngineeringShanghai UniversityShanghai 200072China

The synthesis of cerium-doped lutetium oxyorthosilicate(LSO)polycrystalline powders was investigated by a hydrothermal *** precursor was obtained by the hydrothermal reaction of Lu(NO_(3))_(3)with Na_(2)SiO_(3)at 200℃for 10 h by using urea as precipitator,fol-lowed by a calcination uader proper *** results of XRD indicated that the precursor was crystallized into A-type LSO phase at 1000℃,and transfetrred to B-type LSO phase when temperature was raised above 1050℃.After being heated at 1250℃for 2 h,single phase of B-type LSO powder was synthesized with homogeneous distribution of particle size ranging from 200 to 300 *** photolumi-nescence spectrum of as-synthesized LSO:Ce powders showed a typical broad emission peak centered at 404 nm,corresponding to the 5d^(1)-4f transition of Ce^(3+).

关键词： lutetium oxyorthosilicate scintillator hydrothermal luminescence powder rare earths

Nonlinear semi-analytical modeling of liquid sloshing in rectangular container with horizontal baffles

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Applied Mathematics and Mechanics(English Edition) 2023年第11期44卷 1973-2004页

作者： Xun MENG Ying SUN Jiadong WANG Ruili HUO ding zhou College of Civil Engineering Nanjing Tech UniversityNanjing 211816China School of Transportation and Civil Engineering Nantong UniversityNantong 226019Jiangsu ProvinceChina Faculty of Civil Engineering and Mechanics Jiangsu UniversityZhenjiang 212013Jiangsu ProvinceChina

A nonlinear semi-analytical scheme is proposed for investigating the finiteamplitude nonlinear sloshing in a horizontally baffled rectangular liquid container under the seismic *** sub-domain method is developed to analytically derive the modal behaviors of the baffled linear *** viscosity dissipation effects from the interior liquid and boundary layers are *** the introduction of the generalized time-dependent coordinates,the surface wave elevation and velocity potential are represented by a series of linear modal *** infinite-dimensional modal system of the nonlinear sloshing is formulated based on the Bateman-Luke variational principle,which is further reduced to the finite-dimensional modal system by using the NarimanovMoiseev asymptotic *** base force and overturning moment induced by the nonlinear sloshing are derived as the functions of the generalized time-dependent *** present results match well with the available analytical,numerical,and experimental *** paper examines the surface wave elevation,base force,and overturning moment versus the baffle parameters and excitation amplitude in detail.

关键词： rectangular container nonlinear sloshing baffe sub-domain multi-modal method

Sonochemical Synthesis of Graphene Oxide-Wrapped Gold Nanoparticles Hybrid Materials:Visible Light Photocatalytic Activity

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Chinese Journal of Chemistry 2015年第1期33卷 119-124页

作者： Yi Cui ding zhou Zhuyin Sui Baohang Han National Center for Nanoscience and Technology Beijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Graphene oxide(GO)-wrapped gold nanoparticles(Au NPs)hybrid materials are constructed via one-pot sono-chemical synthesis and self-assembly,using ethylene glycol as the reducing *** synthesis process above took only 1 h,and the obtained hybrid materials exist as spheres wrapped with gauze-like GO sheets via ionic in-teraction-based *** GO sheets are helpful for the well dispersion of the Au ***,these materials possess enhanced photocatalytic activity under visible light irradiation,owing to the synergistic effect of the two components in the hybrid *** work may provide a convenient approach to control the size and morphology of the Au NPs for the synthesis of GO-wrapped hybrid materials,which opens up a feasible way to synthesize metal NPs/GO ***,this method might lead to developing of a broad class of new functionalized materials wrapped with GO sheets.

关键词： graphene oxide gold nanoparticle sonochemical synthesis metal hybrid material photocatalysis

Electronic Structure and Catalysis on (001) Polar Surface of Cubic Zirconia

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Chemical Research in Chinese Universities 2010年第3期26卷 460-464页

作者： SHEN Pei-jun ding Wei-zhong zhou Yu-ding HUANG Shao-qing Department of Materials Science and Engineering Shanghai University Shanghai 200072 P. R. China

The electronic structure of （001） polar surface of cubic zirconia was studied by GGA（WC） approximation. We found the cubic lattice near （001） surface showed an intensive tendency to transfer to tetragonal lattice. The metallic state appeared on both the terminations. For O-termination, some O2p states were vacated and hole carriers concentrated on surface oxygen-ions. For Zr-termination, some Zr4d states became partial occupied for the loss of O2p states. We observed the hole states were mainly localized at the corresponding ions on surface for both the terminations, while the charge states on Zr-termination were dispersed on surface.

关键词： Polar surface Electronic structure Hole/charge distribution Cataylsis Article

A Facile and Green Synthesis of Sulforaphane

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Chinese Chemical Letters 2006年第9期17卷 1152-1154页

作者： Tong Jian ding Ling zhou Xiao Ping CAO Sate Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000

The compound sulforaphane （SFN, 1） has been synthesized via a facile and green synthetic strategy based on the modification of previous methods. Because of its high bioactivities and rare content in nature, the pres... 详细信息

关键词： SFN Cruciferae facile and green synthesis.

3-D Thermo-Stress Field in Laminated Cylindrical Shells

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Computer Modeling in Engineering & Sciences 2019年第10期121卷 215-247页

作者： Hai Qian Sai-Huen Lo ding zhou Yang Yang Faculty of Civil Engineering and Mechanics Jiangsu UniversityZhenjiang212013China Department of Civil Engineering University of Hong KongHong KongChina College of Civil Engineering Nanjing Tech UniversityNanjing210009China.

The temperature and the stress distribution in simply-supported laminated cylindrical shells undergo thermal loads on the surface have been *** solutions of physical quantities including temperature,heat flux,thermal displacement and stress are developed for the cylindrical laminated *** shells are partitioned into more thin *** cylindrical coordinate,analytical expressions for physical quantities inside each layer are *** into account the compatibility of physical quantities at the interfaces,the relations between the outer and the inner layer of the laminated shell can be described with a transfer *** undetermined parameters from the solutions of each layer can be obtained with boundary *** convergence of the solutions to the number of Fourier series terms has been *** accuracy and feasibility of the present method is verified by comparing theoretical results with numerical outcomes due to Finite Element Method(FEM).Finally,the influences of surface temperature,geometrical size and material properties with respects to temperature,thermal stresses and displacement of layered cylindrical shell are worked out in details in a parameter study.

关键词： Laminated cylindrical shells thermo-elasticity analytical solutions transfer matrix

Analytical Modeling of Fluid Sloshing in A 2D Rectangular Container with A Bottom-Mounted T-Shaped Baffle

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China Ocean Engineering 2022年第2期36卷 299-310页

作者： MENG Xun MA Xiao-zhong ZHANG You-ming FANG Hai zhou ding College of Civil Engineering Nanjing Tech UniversityNanjing 211816China Flood Control and Drought Relief Rescue Center of Jiangsu Province Nanjing 211500China

An analytical procedure is presented to evaluate the fluid sloshing characteristics in a two-dimensional(2D)rectangular container with a bottom-mounted T-shaped *** fluid region is divided into several sub-domains with hypothetical interfaces and the velocities and pressures of the fluid on adjacent interfaces should be *** separation of variables in conjunction with the superposition principle is employed to formulate the velocity potential of each *** Fourier series expansion is used to derive the eigenvalue equation by substituting the velocity potential solutions into the free surface conditions and the continuity conditions on adjacent *** the horizontal base excitation,the total velocity potential of fluid is decomposed of the impulsive and perturbed velocity *** orthogonality of the sloshing modes is demonstrated by implementing Gauss *** dynamic response equation is established by incorporating the total velocity potential solution into the surface wave *** agreements are achieved between the present results and those from the reported literature and finite element *** results are exhibited to reveal the effect of the baffle parameters and excitation frequency on sloshing characteristics and responses of liquid.

关键词： rectangular container T-shaped baffle sub-domain sloshing characteristics dynamic response

All-solid-state electrochromic devices based on WO3‖NiO films:material developments and future applications

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Science China Chemistry 2017年第1期60卷 3-12页

作者： ding zhou Dong Xie Xinhui Xia Xiuli Wang Changdong Gu Jiangping Tu State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and School of Materials Science and Engineering Zhejiang University Hangzhou 310027 China Cyrus Tang Center for Sensor Materials and Applications Zhejiang University Hangzhou 310027 China

Electrochromism refers to the persistent and reversible change of optical properties by an applied voltage ***(EC)devices have been extensively studied because of their commercial applications in smart windows of green buildings,display devices and thermal control of *** this review,a basic EC device design is presented based on useful oxides and solid-state *** focus on the state-of-the-art research activities related to the structures of tungsten oxide(WO_3)and nickel oxide(NiO),summarizing the strategies to improve their EC performances and further applications of devices.

关键词： electrochromic devices tungsten oxide nickel oxide solid-state electrolyte electrochromism

Biofeedback therapy combined with Baduanjin on quality of life and gastrointestinal hormone level in patients with colorectal cancer

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World Journal of Gastrointestinal Oncology 2022年第6期14卷 1187-1198页

作者： Xiao-ding zhou Hong-Gang Wei Fu-Lu Ai Graduate Work Department Shenyang Sport UniversityShenyang 110102Liaoning ProvinceChina Wushu and Dance Academy Shenyang Sport UniversityShenyang 110115Liaoning ProvinceChina Department of General Surgery Liaoning Tumor HospitalShenyang 110042Liaoning ProvinceChina

BACKGROUND With the change in people’s lifestyles,the incidence of colorectal cancer(CRC)is *** is essential to study the efficacy of various treatment methods for CRC patients to prevent and treat *** To investigate the efficacy of biofeedback therapy combined with Baduanjin in improving the quality of life and gastrointestinal hormone levels of patients with *** A total of 120 patients with CRC who were admitted to our hospital from June 2020 to June 2021 were included in the *** were randomly divided into four groups(n=30):the control group(group A),the biofeedback therapy intervention group(group B),the Baduanjin exercise intervention group(group C),and the combination group(group D).Patients in group A adopted the standard nursing mode and necessary health *** in group B were treated with biofeedback therapy based on routine nursing *** in group C were given Baduanjin intervention for 12 wk based on conventional drug treatment and *** in group D were treated with biofeedback therapy and Baduanjin *** this study,patients’quality of life,gastrointestinal hormone levels,and clinical efficacy in the four groups were observed at baseline and 12 wk after ***,the correlation between gastrointestinal hormone levels and various functional areas of quality of life was *** comparing the observed indicators of patients in the four groups,the efficacy of biofeedback therapy combined with Baduanjin in improving the quality of life and gastrointestinal hormone levels of patients with CRC was *** At baseline,there were no significant differences in quality of life,gastrointestinal hormone levels,or clinical efficacy among the four groups(P>0.05).Twelve weeks after the intervention,the combination group’s quality of life,gastrointestinal hormone levels,and clinical effectiveness were better than those of the three other *** On the basis of routine nursin

关键词： Biofeedback therapy Baduanjin Colorectal cancer Quality of life Gastrointestinal hormone level Clinical efficacy