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| 1 | Mercury removal from coal combustion flue gas by modified fly ash显示文摘Fly ash is a potential alternative to activated carbon for mercury adsorption. The effects of physicochemical properties on the mercury adsorption performance of three fly ash samples were investigated. X-ray fluorescence spectroscopy, X-ray photoelectron spectroscopy, and other methods were used to characterize the samples. Results indicate that mercury adsorption on fly ash is primarily physisorption and chemisorption. High specific surface areas and small pore diameters are beneficial to efficient mercury removal. Incompletely burned carbon is also an important factor for the improvement of mercury removal efficiency, in particular. The C-M bond, which is formed by the reaction of C and Ti, Si and other elements, may improve mercury oxidation. The samples modified with CuBr2 , CuCl 2 and FeCl3 showed excellent performance for Hg removal, because the chlorine in metal chlorides acts as an oxidant that promotes the conversion of elemental mercury (Hg0) into its oxidized form (Hg2+). Cu2+ and Fe3+ can also promote Hg 0 oxidation as catalysts. HCl and O2 promote the adsorption of Hg by modified fly ash, whereas SO2 inhibits the Hg adsorption because of competitive adsorption for active sites. Fly ash samples modified with CuBr2 , CuCl2 and FeCl3 are therefore promising materials for controlling mercury emissions. | Wenqing Xu Hairui Wang Tingyu Zhu Junyan Kuang Pengfei Jing | 2013 | Journal of Environmental Sciences2013,25,2: | 39 |
| 2 | Experimental study on the angle of repose of pulverized coal显示文摘An experimental study on the angle of repose(AoR)of pulverized coal with different particle sizes and different moisture contents(MC)was conducted.Three different measurement methods,free-base piling,fixed-base piling and sliding,were used.The data were analyzed by one-way and two-way analysis of variance.The results showed that the AoRs of pulverized coal with particle sizes smaller than 150 m were in the range of 30-50°.The characterization of the flowability of pulverized coal was some cohesiveness or true cohesiveness.The increase of MC will increase AoR and thus decrease the flowability of the powder.However,the particle size effect is bifurcated.Below a critical size,the decrease of particle size decreases the flowability;while above the critical size,the decrease of particle size increases the flowability.It was found that the value of the critical size strongly depends on the powder density.Moreover,the AoR dependence on particle size could be linked with the Geldart's particle classification.The critical size at the turning point is on the boundary between Group A and Group B in Geldart's classification diagram.Based on the experimental results,there is no significant cross interaction between particle size and MC.The AoRs measured by free-base method and fixed-base method are close,but both remarkably smaller than that measured by the sliding method. | Wei Wang Jiansheng Zhang Shi Yang Hai Zhang Hairui Yang Guangxi Yue | 2010 | Particuology2010,8,5: | 20 |
| 3 | Development of a supercritical and an ultra-supercritical circulating fluidized bed boiler显示文摘The supercritical circulating fluidized bed(CFB)boiler,which combines the advantages of CFB combustion with low cost emission control and supercritical steam cycle with high efficiency of coal energy,is believed to be the future of CFB combustion technology.It is also of greatest importance for low rank coal utilization in China.Different from the supercritical pulverized coal boiler that has been developed more than 50 years,the supercritical CFB boiler is still a new one which requires further investigation.Without any precedentor engineering reference,Chinese researchers have con ducted fundamental research,development,design of the supercritical CFB boilers independently.The design theory and key technology for supercritical CFB boiler were proposed.Key components and novel structures were invented.The first 600 MWe supercritical CFB boiler and its auxiliaries were successfully developed and demonstrated in Baima Power Plant,Shenhua Group as well as the simulator,control technology,installation technology,commissioning technology,system integration and operation technology.Compared with the 460 MWe supercritical CFB in Poland,developed in the same period and the only other supercritical one of commercial running in the word beside Baima,the 600 MWe one in Baima has a better performance.Besides,supercritical CFB boilers of 350 MWe have been developed and widely commercialized in China.In this paper,the updated progress of 660 MWe ultra-supercritical CFB boilers under development is introduced. | Junfu LYU Hairui YANG Wen LING Li NIE Guangxi YUE Ruixin LI Ying CHEN Shilong WANG | 2019 | Frontiers in Energy2019,13,1: | 11 |
| 4 | Computer Management of Quantitative Analysis Chemistry Experiment显示文摘 | Hairui Zhang Guofu Zhang Qing Zhang Jianbo Cui Jianhong Qi | 2014 | Journal of Chemistry and Chemical Engineering2014,8,2: | 8 |
| 5 | Particle size distribution in CPFD modeling of gas-solid flows in a CFB riser显示文摘A computational particle fluid dynamics(CPFD) numerical method to model gas-solid flows in a circulating fluidized bed(CFB) riser was used to assess the effects of particle size distribution(PSD) on solids distribution and flow.We investigated a binary PSD and a polydisperse PSD case.Our simulations were compared with measured solids concentrations and velocity profiles from experiments,as well as with a published Eulerian-Eulerian simulation.Overall flow patterns were similar for both simulation cases,as confirmed by experimental measurements.However,our fine-mesh CPFD simulations failed to predict a dense bottom region in the riser,as seen in other numerical studies.Above this bottom region,distributions of particle volume fraction and particle vertical velocity were consistent with our experiments,and the simulated average particle diameter decreased as a power function with riser height.Interactions between particles and walls also were successfully modeled,with accurate predictions for the lateral profiles of particle vertical velocity.It was easy to implement PSD into the CPFD numerical model,and it required fewer computational resources compared with other models,especially when particles with a polydisperse PSD were present in the heterogeneous flow. | Qinggong Wang Timo Niemi Juho Peltola Sirpa Kallio Hairui Yang Junfu Lu Lubin Weic | 2015 | Particuology2015,13,4: | 8 |
| 6 | Neural Network Predictive Control of Variable-pitch Wind Turbines Based on Small-world Optimization Algorithm显示文摘通过将混沌映射用于产生初始节点集和进行算子构造,提出一种新的基于实数编码的混沌小世界优化算法。采用4种算法对多例复杂函数的优化问题进行仿真试验,表明所提算法具有能够有效避免陷入局部极小值、快速搜索到最优值的能力。将上述方法应用于变桨距风电机组启动并网时的转速控制,提出一种基于混沌小世界优化算法的神经网络预测控制策略,其预测模型由基于现场数据的神经网络模型建立。仿真与实际测试结果表明,该系统可以根据风速扰动提前预测电机的转速变化,使控制器超前动作,保证系统输出跟踪参考轨迹的方向稳步改变,确保风电机组平稳并网。 | WANG Shuangxin LI Zhaoxia LIU Hairui | 2012 | 中国电机工程学报2012,32,30: | 8 |
| 7 | Generative API usage code recommendation with parameter concretization显示文摘Many programming languages and development frameworks have extensive libraries(e.g., JDK and Android libraries) that ease the task of software engineering if used effectively. With numerous library classes and sometimes intricate API(application programming interface) usage constraints, programmers often have difficulty remembering the library APIs and/or using them correctly. This study addresses this problem by developing an engine called DeepAPIRec, which automatically recommends the API usage code.Compared to the existing proposals, our approach distinguishes itself in two ways. First, it is based on a tree-based long short-term memory(LSTM) neural network inspired by recent developments in the machinelearning community. A tree-based LSTM neural network allows us to model and reason about variable-length,preceding and succeeding code contexts, and to make precise predictions. Second, we apply data-flow analysis to generate concrete parameters for the API usage code, which not only allows us to generate complete code recommendations but also improves the accuracy of the learning results according to the tree-based LSTM neural network. Our approach has been implemented for supporting Java programs. Our experimental studies on the JDK library show that at statement-level recommendations, DeepAPIRec can achieve a top-1 accuracy of about 37% and a top-5 accuracy of about 64%, which are significantly better than the existing approaches. Our user study further confirms that DeepAPIRec can help developers to complete a segment of code faster and more accurately as compared to IntelliJ IDEA. | Chi CHEN Xin PENG Jun SUN Zhenchang XING Xin WANG Yifan ZHAO Hairui ZHANG Wenyun ZHAO | 2019 | Science China(Information Sciences)2019,62,9: | 7 |
| 8 | Surface and intrinsic contributions to extinction properties of ZnSe quantum dots显示文摘This work studies extinction properties of ZnSe quantum dots terminated with either Se-surface or Zn-surface(Se-ZnSe or Zn-ZnSe QDs).In addition to commonly observed photoluminescence quenching by anionic surface sites,Se-ZnSe QDs are found to show drastic signatures of Se-surface states in their UV-visible(Vis)absorption spectra.Similar to most QDs reported in literature,monodisperse Zn-ZnSe QDs show sharp absorption features and blue-shifted yet steep absorption edge respect to the bulk bandgap.However,for monodisperse Se-ZnSe QDs,all absorption features are smeared and a low-energy tail is identified to extend to an energy window below the bulk ZnSe bandgap.Along increasing their size,a cyclic growth of ZnSe QDs switches their surface from Zn-terminated to Se-terminated ones,which confirms that the specific absorption signatures are reproducibly repeated between those of two types of the QDs.Though the extinction coefficients per unit of Se-ZnSe QDs are always larger than those of Zn-ZnSe QDs with the same size,both of them approach the same bulk limit.In addition to contribution of the lattice,extinction coefficients per nanocrystal of Zn-ZnSe QDs show an exponential term against their sizes,which is expected for quantum-confinement enhancement of electron-hole wavefunction overlapping.For Se-ZnSe QDs,there is the third term identified for their extinction coefficients per nanocrystal,which is proportional to the square of size of the QDs and consistent with surface contribution. | Shangxin Lin Jiongzhao Li Chaodan Pu Hairui Lei Meiyi Zhu Haiyan Qin Xiaogang Peng | 2020 | Nano Research2020,13,3: | 5 |
| 9 | Progress of circulating fluidized bed combustion technology in China:a review显示文摘Circulating fluidized bed(CFB)technology plays an important role in the utilization of low-grade coal in China.This article reviews CFB combustion technology development in China and summarizes recent achievements.Since 1990 Chinese engineers and researchers have been undertaking work to improve CFB boiler technology.A completely novel CFB boiler design theory was developed and used in the domestic manufacturing of CFB boilers with various capacities.China is the largest supplier and customer of CFB boilers in the world due to the widespread use of CFB boilers.In 2007,the lower energy consumption CFB technology was successfully developed by re-specifying the fluidization state,which reduced the power consumption of forced fans and solved the potential erosion problems on the water wall.Afterwards,in order to increase the electric power generation efficiency,the supercritical CFB(SCCFB)boiler was developed and the first 600 MW SCCFB boiler was demonstrated and put into commercial operation in 2013.The success of the technology is evident with over 80 SCCFB boilers on order with capacities of 350 MW to 660 MW.Chinese scientists and engineers are also developing technology to lower the emissions of CFB combustion to meet the requirements of China’s strict emission regulations.This emission reduction is through high-efficiency desulfurization by limestone injection into the furnace and low NOx combustion,ultra-low emission of SO2 and NOx in the furnace can be realized by improving the bed quality and increasing the solid circulation rate.There is currently further research and design development being undertaken to develop a 660 MW ultra-supercritical CFB(USCCFB)boiler.The new boiler is expected to be operational before 2020 resulting in higher efficiency and lower energy consumption and emissions. | Runxia Cai Xiwei Ke Junfu Lyu Hairui Yang Man Zhang Guangxi Yue Wen Ling | 2017 | Clean Energy2017,1,1: | 5 |
| 10 | Helium-3 global optical model potential with energies below 250 MeV显示文摘A new set of global phenomenological optical model potential parameters has been obtained for helium-3 projectile,by simultaneously fitting the experimental data of helium-3 total reaction cross sections and elastic scattering angular distributions in the mass range of target nuclei 20 A 209 at incident energies below 250 MeV.A comparison has been made between the extracted helium-3 global optical model potential parameters and the existing ones.The calculated results of total reaction cross sections and elastic scattering angular distributions are also compared with experimental data with their satisfactory agreement. | XU YongLi GUO HaiRui HAN YinLu SHEN QingBiao | 2011 | Science China(Physics,Mechanics & Astronomy)2011,54,11: | 4 |
| 11 | Modeling study of combustion process of oil shale semicoke in a circulating fluidized bed boiler显示文摘In this paper,the combustion process of oil shale semicoke was investigated by modeling,where intraparticle mass transfer resistance was especially considered.The ash formation and attrition characteristics of oil shale semicoke were also investigated by a laboratory test procedure.The burnout time and residence time of different particle sizes were predicted,and the maximum particle size of which oil shale semicoke could be burned out in a 3 MW circulating fluidized bed boiler was obtained. | Yiqun Huang Man Zhang Junfu Lyu Hairui Yang | 2018 | Carbon Resources Conversion2018,1,3: | 4 |
| 12 | Cartan decomposition of a two-qutrit gate显示文摘The decomposition of matrices corresponding to the 2-qutrit logic gate by succes-sive Cartan decomposition is investigated, and written in an exponential form based on the relationship between Lie group and Lie algebra, thus making them able to relate with the control field and the Hamiltonian of the system to perform the gate. Finally the decomposition of the ternary SWAP gate is presented in detail. | DI YaoMin ZHANG Jie WEI HaiRui | 2008 | Science China(Physics,Mechanics & Astronomy)2008,51,11: | 4 |
| 13 | Research and Application of Computer Management of the Test Chemical Products Quality Analysis显示文摘 | Hairui Zhang Guofu Zhang Helin Ye | 2015 | Journal of Chemistry and Chemical Engineering2015,9,2: | 4 |
| 14 | Synthesis of some three-qubit gates and their implementation in a three spins system coupled with Ising interaction显示文摘The synthesis of the Toffoli gate, Fredkin gate, three-qubit Inversion-on-equality gate and D(α) gate, as well as their implementation in a three spins system coupled with Ising interaction are investigated. The sequences of the control pulse and the drift process to implement these gates are given. It is revealed that the implementation of some three-qubit gates in a circular spin chain is much better than in a linear spin chain, and every two measurements of the quantum computation complexity are not always consistent. It is significant to directly study the implementation of the multi-qubit gates and even more complicated components of quantum information processing without resorting to their synthesis. | WEI HaiRui, DI YaoMin & WANG Yan School of Physics & Electronic Engineering, Xuzhou Normal University, Xuzhou 221116, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010,53,4: | 4 |
| 15 | Morphology-selective synthesis of active and durable gold catalysts with high catalytic performance in the reduction of 4-nitrophenol显示文摘由 nanosized Au 粒子组成的一系列新奇催化剂与血小板(PL ) 在 micro-mesoporous ZSM-5/SBA-15 (ZSBA ) 材料限制了,杆(RD ) ,并且六角形棱柱(HP ) 形态学在 situ 被综合了。这些催化剂拥有 SBA-15 和 ZSM-5 结构并且在 ZSBA 以内由 Au nanoparticles (NP ) 的监禁展出他们的活跃地点的优秀稳定性。催化剂深入地被描绘了理解他们的结构性质关系。金 NP 尺寸和催化剂的毛孔结构,被发现对锻烧温度和合成条件敏感,被显示在 4-nitrophenol 的减小起重要作用。与短 mesochannels (210 nm ) 和一条大毛孔直径(6.7 nm ) ,而与长 mesochannels 和相对更小的毛孔尺寸, Au/ZSBA-HP 和 Au/ZSBA-RD 给穷人看催化活动, Au/ZSBA-PL 在 4-nitrophenol 的减小展出高催化的性能。在有不同金 NP 尺寸的催化剂的情况中,有 4.0 nm 的一条 Au NP 直径的 Au/ZSBA-PL-350 展出最高的反应率常数(0.14 min -1) 和周转频率(0.0341 s -1) 。另外, 4-nitrophenol 的减小上的反应参数的效果系统地被调查了。为在 Au/ZSBA 催化剂上的 4-nitrophenol 减小的可能的机制被建议。 | Daowei Gao Xin Zhang Xiaoping Dai Yuchen Qin Aijun Duan Yanbing Yu Hongying Zhuo Hairui Zhao Pengfang Zhang Yan Jiang Jianmei Li Zhen Zhao | 2016 | Nano Research2016,9,10: | 4 |
| 16 | Carbon quantum dots/BiVO_4 composite with enhanced photocatalytic activity显示文摘In this study, we report the facile fabrication of a carbon quantum dots(CQDs)/BiVO_4 composite with efficient photocatalytic activity. Due to the excellent upconversion photoluminescence, as well as the photo-induced electron transfer and reservoir properties of CQDs, the CQDs/BiVO_4 composite exhibited superior photocatalytic performance in the degradation of rhodamine B(RhB) under the irradiation of simulated solar light. This study provides a strategy for the development of high-performance catalysts based on CQDs. | ZHANG ZhiJie HUANG HaiRui XU JiaYue ZHANG Na ZHANG Cheng | 2019 | Science China(Technological Sciences)2019,62,2: | 3 |
| 17 | Network Management of Food Additives Quality Analysis and Inspection显示文摘 | Hairui Zhang Guofu Zhang Li Zhang | 2015 | Journal of Chemistry and Chemical Engineering2015,9,7: | 3 |
| 18 | Transgenic rice plants with a synthetic cry1Ab gene from Bacillus thuringiensis were highly resistant to eight lepidopteran rice pest species显示文摘 | Qingyao Shu Gongyin Ye Hairui Cui Xiongying Cheng Youbin Xiang Dianxing Wu Mingwei Gao Yingwu Xia Cui Hu Ravinder Sardana Illimar Altosaar | 2000 | Molecular Breeding2000,,4: | 2 |
| 19 | Down-regulation of lipocalin 2 suppresses the growth of human lung adenocarcinoma through oxidative stress involving Nrf2/HO-1 signaling显示文摘Lipocalin 2 (LCN2 ) ,作为嗜中性的联系 gelatinase 的 lipocalin (NGAL ) 知道的多功能的能分泌的蛋白质,在许多癌症被表示。然而,很少在肺腺癌的发展对 NGAL 的生物功能被知道。在现在的学习,我们首先发现那 NGAL 表情在人的肺腺癌纸巾是起来调整的。另外, NGAL 表示的弄空减少了房间增长和导致的房间 apoptosis 的能力。而且与 N-acetylcysteine 的增加,反应的氧种类(ROS ) 的 scavenger, NGAL 弄空是足够的由通过原子因素的抑制产生 ROS 引起肺腺癌细胞的 apoptosis,这被发现 E2 相关的因素 2/heme oxygenase-1 抗氧化剂小径。最后,人的肺腺癌的生长上的 NGAL 下面规定的效果在 BALB/c 裸体老鼠被决定。这些调查结果证明 NGAL 可以是为有肺腺癌的病人的一个潜在的治疗目标。 | Baoquan Song Hairui Zhang Lei Jiang Ying Chi Jianjian Tian Wenjing Du Bentong Yu Zhongchao Han | 2015 | Acta Biochimica et Biophysica Sinica2015,47,10: | 2 |
| 20 | Boosting photocatalytic hydrogen evolution of g-C_(3)N_(4) catalyst via lowering the Fermi level of co-catalyst显示文摘The photocatalytic performances are highly dependent on the charge separation and surface reaction kinetics of photocatalysts.Aiming at figuring out the effects of co-catalyst with the lower Fermi level on photocatalytic activity,we tuned the Fermi level of Pt nanoparticles on g-C_(3)N_(4)(GCN)by introducing Co atom.Experimental results show that lowering the Fermi level of co-catalyst does not alter light absorption of GCN due to the invariable structure.Besides,Pt_(3)Co with a lower Fermi level contributes less positive influence on charge separation in GCN due to an opposite effect from the stronger electron-trap ability of Pt_(3)Co and increased band bending in GCN-Pt_(3)Co.The density functional theory(DFT)calculations indicate that GCN-Pt_(3)Co has faster surface reaction kinetics than GCN-Pt,owing to easier dissociation of H_(2)O molecules and faster desorption of H^(*)on Pt_(3)Co.Consequently,GCN-Pt_(3)Co exhibits an excellent H_(2) evolution rate with 2.91 mmol g^(-1)·h^(-1),which 2.67 times that of GCN-Pt. | Hairui Cai Bin Wang Laifei Xiong Jinglei Bi Hanjing Hao Xiaojing Yu Chao Li Jiamei Liu Shengchun Yang | 2022 | Nano Research2022,15,2: | 2 |