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101篇 您的检索式:作者名="Zhulin"
    题名 作者 年代 出处 被引量
1CFD-DEM simulation of spouting of corn-shaped particles显示文摘Three dimensionally coupled computational fluid dynamics (CFD) and discrete element method (DEM) were used to investigate the flow of corn-shaped particles in a cylindrical spouted bed with a conical base. The particle motion was modeled by the DEM, and the gas motion by the k-ε two-equation turbulent model. A two-way coupling numerical iterative scheme was used to incorporate the effects of gas-particle interactions in terms of momentum exchange. The corn-shaped particles were constructed by a multisphere method. Drag force, contact force, Saffman lift force, Magnus lift force, and gravitational force acting on each individual particle were considered in establishing the mathematical modeling. Calculations were carried out in a cylindrical spouted bed with an inside diameter of 200 mm, a height of 700 mm, and a conical base of 60 . Comparison of simulations with experiments showed the availability of the multi-sphere method in simulating spouting action with corn-shaped particles, but it depended strongly on the number and the arrangement of the spherical elements. Gas-solid flow patterns, pressure drop, particle velocity and particle concentration at various spouting gas velocity were discussed. The results showed that particle velocity reaches a maximum at the axis and then decreases gradually along the radial direction in the whole bed. Particle concentration increases along the radial direction in the spout region but decreases in the fountain region, while it is nearly constant in the annulus region. Increasing spouting gas velocity leads to larger pressure drop, remarkably increased speed of particle moving upward or downward, but decreased particle concentration.Bing Ren Wenqi Zhong Yu Chen Xi Chen Baosheng Jin Zhulin Yuan Yong Lu 2012Particuology2012,10,5:17
2COVID-19 Super Spreading Event Amongst Elderly Individuals—Jilin Province,China,January 2021显示文摘Summary What is already known on this topic?Clusters of COVID-19 cases often happened in small settings(e.g.,families,offices,school,or workplaces)that facilitate person-to-person virus transmission,especially from a common exposure.What is added by this report?On January 10 and 11,2021,an individual gave three product promotional lectures in Tonghua City.Laishun Yao Mingyu Luo Tiewu Jia Xingang Zhang Zhulin Hou Feng Gao Xin Wang Xiaogang Wu Weihua Cheng Guoqian Li Jing Lu Bing Zhao Tao Li Enfu Chen Dapeng Yin Biao Huang 2021China CDC weekly2021,3,10:13
3Discriminative graph regularized broad learning system for image recognition显示文摘Broad learning system(BLS) has been proposed as an alternative method of deep learning. The architecture of BLS is that the input is randomly mapped into series of feature spaces which form the feature nodes, and the output of the feature nodes are expanded broadly to form the enhancement nodes, and then the output weights of the network can be determined analytically. The most advantage of BLS is that it can be learned incrementally without a retraining process when there comes new input data or neural nodes. It has been proven that BLS can overcome the inadequacies caused by training a large number of parameters in gradient-based deep learning algorithms. In this paper, a novel variant graph regularized broad learning system(GBLS) is proposed. Taking account of the locally invariant property of data, which means the similar images may share similar properties, the manifold learning is incorporated into the objective function of the standard BLS. In GBLS, the output weights are constrained to learn more discriminative information,and the classification ability can be further enhanced. Several experiments are carried out to verify that our proposed GBLS model can outperform the standard BLS. What is more, the GBLS also performs better compared with other state-of-the-art image recognition methods in several image databases.Junwei JIN Zhulin LIU C.L.Philip CHEN 2018Science China(Information Sciences)2018,61,11:12
4Flow properties of three fuel powders显示文摘Flow and physical properties were measured for three fuel powders:sawdust,brown coal and hard coal.Besides physical properties,e.g.,particle size,bulk density and moisture content,flowability was investigated using the standard shear testing technique of the Jenike shear cell.Flow functions of the three powders used for characterization of bulk flow and design of hoppers were determined,and then compared and discussed.The flow functions of the three powders are located in different regions:while brown coal and hard coal were classified respectively as easy flowing and cohesive material,sawdust was found in regions varying from cohesive to easy flowing at low consolidation stress.The measured effective angle of internal friction and angle of wall friction were 55°and 31.4°for sawdust;36.2°and 26° for brown coal;and 43.3°and 27.8°for hard coal.Using the measured powder flow properties,Jenike's procedure was then followed to estimate and compare the critical hopper dimensions for mass flow of the three powders.Pan Chen Zhulin Yuan Xianglin Shen Yuanyuan Zhang 2012Particuology2012,10,4:8
5Improving the removal of fine particles by chemical agglomeration during the limestone-gypsum wet flue gas desulfurization process显示文摘Coal-fired power plants are considered a major source of fine particle emissions in China.Aimed to improve the removal efficiency of fine particles during the limestone-gypsum wet flue gas desulfurization(WFGD) process, a novel technology using chemical agglomeration to abate the emission of fine particles is presented herein. The relationship between fine particle emission and the proportion of fine particles in the desulfurization slurry was studied.Additionally, the influence of chemical agglomeration on fine particle size distribution, both in the flue gas and slurry was experimentally investigated. When chemical agglomeration agents were added to the desulfurization slurry, the fine particle removal performance as well as the effects of the operation parameters was also explored via the simulated experimental facility.The results revealed that the fine particles in both the desulfurization slurry and flue gas were significantly enlarged after the addition of the agglomeration agents. This was more marked in the submicron particles. Thus, the proportion of fine particles(< 10 μm) in the slurry decreased from 31.1% to 22.6%. An increase in the desulfurization slurry temperature and liquid-to-gas ratio aided the reduction in fine particle emission. Moreover, the addition of an agglomeration agent in the slurry did not affect the desulfurization efficiency of the desulfurization tower and even promoted the WFGD process. Thus, the proposed chemical agglomeration technique reduced the fine particle emission of the WFGD system by ~30%, while a desulfurization efficiency >90% was maintained.Lei Zhou Yong Liu Lvyuan Luo Zhulin Yuan Linjun Yang Hao Wu 2019Journal of Environmental Sciences2019,31,6:8
6MoS_2 Nanosheet Arrays Rooted on Hollow rGO Spheres as Bifunctional Hydrogen Evolution Catalyst and Supercapacitor Electrode显示文摘MoS_2 has attracted attention as a promising hydrogen evolution reaction(HER) catalyst and a supercapacitor electrode material. However, its catalytic activity and capacitive performance are still hindered by its aggregation and poor intrinsic conductivity. Here, hollow rGO sphere-supported ultrathin MoS_2 nanosheet arrays(hrGO@MoS_2) are constructed via a dual-template approach and employed as bifunctional HER catalyst and supercapacitor electrode material. Because of the expanded interlayer spacing in MoS_2 nanosheets and more exposed electroactive S–Mo–S edges, the constructed h-rGO@MoS_2 architectures exhibit enhanced HER performance. Furthermore, benefiting from the synergistic effect of the improved conductivity and boosted specific surface areas(144.9 m^2 g^(-1), ca. 4.6-times that of pristine MoS_2), the h-rGO@MoS_2 architecture shows a high specific capacitance(238 F g^(-1) at a current density of 0.5 A g^(-1)), excellent rate capacitance, and remarkable cycle stability. Our synthesis method may be extended to construct other vertically aligned hollow architectures,which may serve both as efficient HER catalysts and supercapacitor electrodes.Shizheng Zheng Lijun Zheng Zhengyou Zhu Jian Chen Jianli Kang Zhulin Huang Dachi Yang 2018Nano-Micro Letters2018,10,4:8
7Polyacrylic acid sodium salt film entrapped Ag-nanocubes as molecule traps for SERS detection显示文摘提高表面的拉曼光谱学(重量的单位) 是为踪迹化学药品的一种快分析技术;然而,吸附 analytes 要求活跃重量的单位底层,因此为底层与需要的亲密关系限制目标种类到那些。这里我们现在的联网的 polyacrylic 酸钠盐(PAAS ) 电影骗诱 Ag-nanocubes (作为 Ag-nanocubes@PAAS 表示了) 作为为有或没有高亲密关系的 analytes 的有效重量的单位底层。一次 analyte 水的答案在干燥 Ag-nanocubes@PAAS 底层上被扔,嗜酒的 PAAS 变得肿强迫 Ag-nanocubes 松开,当时在在 Ag-nanocubes 之中的空隙弥漫的 analytes。当弄干时, PAAS 缩小并且拉 Ag-nanocubes 回到他们的以前的聚集的状态,当 PAAS 网络为重量的单位察觉在在 Ag-nanocubes 之间的小差距耽搁 analytes 时。没有强壮的亲密关系,策略为 Ag 为不仅 singleanalytes 而且 multi-analytes 被证明有效,在环境在能吸附、非能吸附的污染物质的基于重量的单位的同时的 multi-analyte 察觉显示出它的潜力。Zhulin Huang Guowen Meng Qing Huang Bin Chen Fei Zhou Xiaoye Hu Yiwu Qian Haibin Tang Fangming Han Zhaoqin Chu 2014Nano Research2014,7,8:6
8Orientation of cylindrical particles in gas-solid circulating fluidized bed显示文摘The orientation of cylindrical particles in a gas-solid circulating fluidized bed was investigated by establishing a three-dimensional Euler-Lagrange model on the basis of rigid kinetics, impact kinetics and gas-solid two-phase flow theory. The resulting simulation indicated that the model could well illustrate the orientation of cylindrical particles in a riser during fluidization. The influences of bed structure and operation parameters on orientation of cylindrical particles were then studied and compared with related experimental results. The simulation results showed that the majority of cylindrical particles move with small nutation angles in the riser, the orientation of cylindrical particles is affected more obviously by their positions than by their slenderness and local gas velocities. The simulation results well agree with experiments, thus validating the proposed model and computation.Jie cai Qihe Li Zhulin Yuan 2012Particuology2012,10,1:5
9Numerical simulation on mixing dynamics of flexible filamentous particles in the transverse section of a rotary drum显示文摘Flexible filamentous particles are a special kind of particles and play a significant role in many industrial processes.The mixing dynamics of flexible filamentous particles in the transverse section of a rotary drum were analyzed numerically in two dimensions.First,a chain model of slender bodies was introduced for particle dynamic studies,and each individual particle as well as each segment of the particle was tracked during the process.Then,the bulk movement of particles in the transverse section of a rotary drum was explored numerically and mixing dynamics of the particles were further investigated with visual representation.To quantify the quality of mixing,the mixing rates were investigated to determine the mixing extent of particles in the rotary drum.Furthermore,the effects of rotational velocity,flight height and filling degree on mixing dynamics were examined in detail.Moreover,the numerical results were compared with experimental data,and reasonable agreements were obtained.The numerical analyses provide valuable insights into the mixing dynamics of flexible filamentous particles.Fan Genga Yingchao Wang Yimin Li Longji Yuan Xinyong Wang Min Liu Zhulin Yuan 2013Particuology2013,11,5:4
10Plasmon-tunable Au@Ag core-shell spiky nanoparticles for surfaceenhanced Raman scattering显示文摘A facile synthetic approach has been developed to prepare uniform and size-tunable spiky Au@Ag core-shell nan oparticles (NPs) to tailor the localized surface plasm on res onance (LSPR) properties. The gradual assembly of small Au nano crystals allows the size of spiky Au NPs to be modulated from tens to several hundreds of nano meters by tuning the concentration of initial Au seeds and Au source;and the thick ness of the Ag shell can be adjusted with stepwise reduction of Ag(l)ions. The LSPR bands of such spiky Au@Ag core-shell NPs resemble those of pure spiky Au NP cores of similar sizes in near-infrared region, and increasing the Ag shell thickness results in a blue shift and broadening of the LSPR band in the n ear-i nfrared regi on. Additi on ally, the spiky Au@Ag core-shell NPs exhibit improved surface-e nhan ced Rama n scattering (SERS) activity as compared to the bare spiky Au NPs and spherical Ag@Au NPs. This work has offered a facile route to synthesize plasmonic metal NPs with LSPR band in 650 to 800 nm that show strong enhancement of localized electromagnetic field, which provides an effective SERS substrate for SERS imaging and detection in biological fluids and tissues.Zhulin Huang Guowen Meng Xiaoye Hu Qijun Pan Dexian Huo Hongjian Zhou Yan Ke Nianqiang Wu 2019Nano Research2019,12,2:4
11Hexagonally arranged arrays of urchin-like Ag hemispheres decorated with Ag nanoparticles for surface-enhanced Raman scattering substrates显示文摘The surface topography of noble metal particles is a significant factor in tailoring surface-enhanced Raman scattering (SERS) properties. Here, we present a simple fabrication route to hexagonally arranged arrays of surface-roughened urchin- like Ag hemispheres (Ag-HSs) decorated with Ag nanoparticles (Ag-NPs) for highly active and reproducible SERS substrates. The urchin-like Ag-HS arrays are achieved by sputtering Ag onto the top surface of a highly ordered porous anodic aluminum oxide (AAO) template to form ordered arrays of smooth Ag-HSs and then by electrodepositing Ag-NPs onto the surface of each Ag-HS. Owing to the ordered arrangement of the Ag-HSs and the improved surface roughness, the urchin-like hierarchical Ag-HS arrays can provide sufficient and uniform "hot spots" for reproducible and highly active SERS effects. Using the urchin-like Ag-HS arrays as SERS substrates, 10-7 M dibutyl phthalate (a member of plasticizers family) and 1.5 × 10-5 M PCB-77 (one congener of polychlorinated biphenyl, a notorious class of pollutants) are identified, showing promising potential for these substrates in the rapid recognition of organic pollutants.Haibin Tang Guowen Meng Zhongbo Li Chuhong Zhu Zhulin Huang Zhaoming Wang Fadi Li 2015Nano Research2015,8,7:3
12Sawdust discharge rate from aerated hoppers显示文摘This paper presents a numerical and experimental study of the discharge rate of sawdust from an aerated hopper as an important parameter in many industrial processes involving the handling of other granular materials. Numerical experiments are conducted by means of an Eulerian-Eulerian approach coupled with the kinetic theory of granular fiow(KTGF) . Emphasis is given to the effects of particle size,hopper outlet width,hopper half angle,aeration height and air fiow rate. The results show that the discharge rate is significantly affected by hopper outlet width,particle size and air fiow rate,but is not sensitive to the hopper half angle and aeration height:increasing hopper outlet width or air fiow rate increases dis charge rate,while increasing particle size decreases discharge rate. Close agreement between numerical predictions and experimental results is obtained.Pan Chen Zhulin Yuan Chien-Song Chyang Fu-Xiong Zhuan 2011Particuology2011,9,3:2
13Meta-analysis of Shenqi Fuzheng Injection Combined with Chemotherapy in Treatment of Colorectal Cancer显示文摘[Objectives] To make a systematic evaluation of the clinical efficacy and safety of Shenqi Fuzheng Injection in the treatment of colorectal cancer. [Methods] Databases,such as China National Knowledge Infrastructure( CNKI),Wanfang,China biomedical literature service system( CBM),CQVIP,Medline,and Cochrane,were searched for the time before April 2017. The randomized controlled trial( RCT) that met the inclusion criteria was screened. Then,quality evaluation was made based on the modified Jadad scale. Data were extracted and meta-analysis was made with the aid of Review Manager 5. 3. [Results] Finally,21 papers met the inclusion criteria,including 2 high quality papers. The average Jadad score was 2. 5 points,1 589 patients were included. Meta-analysis results showed that the intervention of the experimental group could improve the quality of life[OR = 3. 32,95% CI( 2. 33,4. 74),P < 0. 000 01]; improve the short-term efficacy[OR =1. 68,95% CI( 1. 26,2. 24),P =0. 000 4]; reduce the incidence of adverse chemotherapy reactions such as reducing the gastrointestinal reactions[OR = 0. 33,95% CI( 0. 25,0. 43),P < 0. 000 01],reducing myelosuppressive reactions[OR = 0. 33,95% CI( 0. 24,0. 46),P < 0. 000 01]; improve the immune functions,such as increasing CD4/CD8 cell ratio[WMD = 1. 19,95% CI( 0. 24,0. 41),( P <0. 000 01) ],and increasing the number of NK cells[WMD =1. 72,95% CI( 5. 62,14. 30),( P <0. 000 01) ]. [Conclusions]The clinical effect of Shenqi Fuzheng Injection in the treatment of colorectal cancer is better than that of chemotherapy alone,but it needs more highquality RCTs to improve the level of research.Weiqing ZHANG Jinhuan ZHANG Zhulin WU Lisheng PENG 2018Medicinal Plant2018,9,5:2
14Psychological reaction in members of medicine rescue team for Wenchuan earthquake in 2008 and its management显示文摘This paper reviews the rescue experience of our medical rescue team during the relief of Wenchuan earthquake in 2008 in Sichuan province, China, and analyzes the psychological reaction of team members. Based on the rescuers' distinctive psychological reaction in different phases of the rescue operation, we aims to propose measures for administration of the team in order to better fulfill the rescue duties and provide references for future medical service in non-war operations such as an earthquake relief.Pan Zhulin Le Yan 2010Journal of Medical Colleges of PLA(China)2010,25,2:2
15Direct Numerical Simulation of Dense Gas Solid Two Phase Flows 显示文摘 2000Journal of Developments in Chemical Engineering & Mineral Processing2000,8,34:1
16PAS domains:internal sensors of oxygen,redox potential,and light显示文摘Taylor BL Zhulin IB 1999Microbiol Mol Biol Rev1999,63,:1
17Direct Numerical Simulation of Dense Gas-Solid Tw o-PhaseFlows显示文摘Yuan Zhulin 2000Developments in Chemical Engineering & Mineral Processing2000,34,:1
18显示文摘ZHULin(朱琳) YUChun-Yan(余春燕) LIANGJian(梁建) etal WujiHuaxueXuebao0,,:1
19PAS domains: internal sensors of oxygen, redox potential, and light显示文摘Taylor BL Zhulin lB 1999Microbiol Mol Biol Rev1999,63,2:1
20Laccases are widespread in bacteria显示文摘Alexandre G Zhulin IB 2000Trends Biotechnol2000,18,2:1
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