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| 1 | Nitrification characteristics of nitrobacteria immobilized in waterborne polyurethane in wastewater of corn-based ethanol fuel production显示文摘A technology to achieve stable and high ammonia nitrogen removal rates for corn distillery wastewater (ethanol fuel production) treatment has been designed.The characteristics of nitrifying bacteria entrapped in a waterborne polyurethane (WPU) gel carrier were evaluated after acclimation.In the acclimation period,nitrification rates of WPU-immobilized nitrobacteria were monitored and polymerase chain reaction (PCR) was also carried out to investigate the change in ammonium-oxidizing bacteria.The results showed that the pellet nitrification rates increased from 21 to 228 mg-N/(L-pellet·hr) and the quantity of the ammonia oxidation bacteria increased substantially during the acclimation.A continuous ammonia removal experiment with the anaerobic pond effluent of a distillery wastewater system was conducted with immobilized nitrifying bacteria for 30 days using an 80 L airlift reactor with pellets at a fill ratio of 15% (V/V).Under the conditions of 75 mg/L influent ammonia,hydraulic retention time (HRT) of 3.7-5.6 hr,and dissolved oxygen (DO) of 4 mg/L,the effluent ammonia concentration was lower than 10 mg/L and the ammonia removal efficiency was 90%.While the highest ammonia removal rate,162 mg-N/(L-pellet·hr),was observed when the HRT was 1.3 hr. | Yamei Dong Zhenjia Zhang Yongwei Jin Jian Lut Xuehang Cheng Jun Li Yan-yan Deng Ya-nan Feng Dongning Chen | 2012 | Journal of Environmental Sciences2012，24，6： | 14 |
| 2 | Dynamic Topology Multi Force Particle Swarm Optimization Algorithm and Its Application显示文摘Particle swarm optimization(PSO) algorithm is an effective bio-inspired algorithm but it has shortage of premature convergence. Researchers have made some improvements especially in force rules and population topologies. However, the current algorithms only consider a single kind of force rules and lack consideration of comprehensive improvement in both multi force rules and population topologies. In this paper, a dynamic topology multi force particle swarm optimization(DTMFPSO) algorithm is proposed in order to get better search performance. First of all, the principle of the presented multi force particle swarm optimization(MFPSO) algorithm is that different force rules are used in different search stages, which can balance the ability of global and local search. Secondly, a fitness-driven edge-changing(FE) topology based on the probability selection mechanism of roulette method is designed to cut and add edges between the particles, and the DTMFPSO algorithm is proposed by combining the FE topology with the MFPSO algorithm through concurrent evolution of both algorithm and structure in order to further improve the search accuracy. Thirdly, Benchmark functions are employed to evaluate the performance of the DTMFPSO algorithm, and test results show that the proposed algorithm is better than the well-known PSO algorithms, such as μPSO, MPSO, and EPSO algorithms. Finally, the proposed algorithm is applied to optimize the process parameters for ultrasonic vibration cutting on Si C wafer, and the surface quality of the Si C wafer is improved by 12.8% compared with the PSO algorithm in Ref. [25]. This research proposes a DTMFPSO algorithm with multi force rules and dynamic population topologies evolved simultaneously, and it has better search performance. | CHEN Dongning ZHANG Ruixing YAO Chengyu ZHAO Zheyu | 2016 | Chinese Journal of Mechanical Engineering2016，29，1： | 13 |
| 3 | An Examination of the Predictability of Tropical Cyclone Genesis in High-Resolution Coupled Models with Dynamically Downscaled Coupled Data Assimilation Initialization显示文摘Predicting tropical cyclone(TC)genesis is of great societal importance but scientifically challenging.It requires fineresolution coupled models that properly represent air−sea interactions in the atmospheric responses to local warm sea surface temperatures and feedbacks,with aid from coherent coupled initialization.This study uses three sets of highresolution regional coupled models(RCMs)covering the Asia−Pacific(AP)region initialized with local observations and dynamically downscaled coupled data assimilation to evaluate the predictability of TC genesis in the West Pacific.The APRCMs consist of three sets of high-resolution configurations of the Weather Research and Forecasting−Regional Ocean Model System(WRF-ROMS):27-km WRF with 9-km ROMS,and 9-km WRF with 3-km ROMS.In this study,a 9-km WRF with 9-km ROMS coupled model system is also used in a case test for the predictability of TC genesis.Since the local sea surface temperatures and wind shear conditions that favor TC formation are better resolved,the enhanced-resolution coupled model tends to improve the predictability of TC genesis,which could be further improved by improving planetary boundary layer physics,thus resolving better air−sea and air−land interactions. | Mingkui LI Shaoqing ZHANG Lixin WU Xiaopei LIN Ping CHANG Gohkan DANABASOGLU Zhiqiang WEI Xiaolin YU Huiqin HU Xiaohui MA Weiwei MA Haoran ZHAO Dongning JIA Xin LIU Kai MAO Youwei MA Yingjing JIANG Xue WANG Guangliang LIU Yuhu CHEN | 2020 | Advances in Atmospheric Sciences2020，37，9： | 4 |
| 4 | Growth and in situ high-pressure reflection high energy electron difraction monitoring of oxide thin films显示文摘接口和表面物理是在在最近的十年的压缩的事物理以内的一个重要学科的分支。象氧化物电子的设备一样的新奇概念被推动,并且他们的性能和一生高度依赖于层表面和接口的平坦和突然。思考高精力的电子衍射(RHEED ) 对表面形态学极其敏感,证明了是为氧化物的生长学习的一种万用的技术薄电影。一个微分抽单位启用 RHEED 的实现,保证搏动的激光免职(PLD ) 系统一在里面在工作的常规 PLD 电影生长过程监视的 situ 氧压力直到 30 Pa。由优化免职条件并且分析 RHEED 紧张摆动, layer-by-layer 生长模式能被达到。电影表面的因此原子的控制和电影厚度的单位房间控制成为现实。这可以重要地在氧化物电子学,和更多导致先进小型化在接口的突现的物理性质的一个范围的发现。此处,我们将简短介绍高压的 RHEED 的原则并且向这个目的总结我们与努力相关的主要结果,包括孪生的 La2/3Ca1/3MnO3 薄电影和 ReTiO3+/2 的生长和描述(Re = La, Nd;= 0 1 ) A n B n O3n+2 结构在绝缘体和 LaAlO3 底层上的缓冲 YSZ 的硅上,分别地,以及起始的结构的学习和 YBa2Cu3O7 的生长动力学变瘦 SrTiO3 上的电影底层。目前,我们在 situ 在氧化物期间监视和生长模式控制认识到薄电影免职过程。 | LI Jie PENG Wei CHEN Ke WANG Ping CHU HaiFeng CHEN YingFei ZHENG DongNing | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，12： | 1 |
| 5 | The two-stage interaction of Ebola virus VP40 with nucleoprotein results in a switch from viral RNA synthesis to virion assembly/ budding显示文摘Ebola virus(EBOV)is an enveloped negative-sense RNA virus and a member of the filovirus family.Nucleoprotein(NP)expression alone leads to the formation of inclusion bodies(IBs),which are critical for viral RNA synthesis.The matrix protein,VP40,not only plays a critical role in virus assembly/budding,but also can regulate transcription and replication of the viral genome.However,the molecular mechanism by which VP40 regulates viral RNA synthesis and virion assembly/budding is unknown.Here,we show that within IBs the N-terminus of NP recruits VP40 and is required for VLP-containing NP release.Furthermore,we find four point mutations(L692A,P697A,P698A and W699A)within the C-terminal hydrophobic core of NP result in a stronger VP40–NP interaction within IBs,sequestering VP40 within IBs,reducing VP40–VLP egress,abolishing the incorporation of NC-like structures into VP40–VLP,and inhibiting viral RNA synthesis,suggesting that the interaction of N-terminus of NP with VP40 induces a conformational change in the C-terminus of NP.Consequently,the C-terminal hydrophobic core of NP is exposed and binds VP40,thereby inhibiting RNA synthesis and initiating virion assembly/budding. | Linjuan Wu Dongning Jin Dan Wang Xuping Jing Peng Gong Yali Qin Mingzhou Chen | 2022 | Protein & Cell2022，13，2： | 0 |
| 6 | ScQ cloud quantum computation for generating Greenberger-Horne-Zeilinger states of up to 10 qubits显示文摘In this study, we introduce an online public quantum computation platform, named as ScQ, based on a 1D array of a 10-qubit superconducting processor. Single-qubit rotation gates can be performed on each qubit. Controlled-NOT gates between nearest-neighbor sites on the 1D array of 10 qubits are available. We show the online preparation and verification of Greenberger-Horne-Zeilinger states of up to 10 qubits through this platform for all possible blocks of qubits in the chain. The graphical user interface and quantum assembly language methods are presented to achieve the above tasks, which rely on a parameter scanning feature implemented on ScQ. The performance of this quantum computation platform, such as fidelities of logic gates and details of the superconducting device, is presented. | Chi-Tong Chen Yun-Hao Shi Zhongcheng Xiang Zheng-An Wang Tian-Ming Li Hao-Yu Sun Tian-Shen He Xiaohui Song Shiping Zhao Dongning Zheng Kai Xu Heng Fan | 2022 | Science China(Physics,Mechanics & Astronomy)2022，65，11： | 0 |
| 7 | Simulation of surface displacement and strain field of the 2011 Japan Mw9. 0 earthquake显示文摘Based on dislocation theory of Okada,we adopted a finite-element fault model inverted by Gavin Hayes from seismic data for the 2011 Japan Mw9. 0 earthquake,and obtained the corresponding surface displacement and strain fields. The calculated displacement field is consistent with the observed GPS results in the trend of changes. Also the surface displacement and strain fields both show large variations in space. | Chen Shujun Wu Jianchao Lei Dongning Cai Yongjian Li Heng Zhang Xinlin | 2011 | Geodesy and Geodynamics2011，2，4： | 0 |
| 8 | Effects of second-order dispersion of ultrashort laser pulse on stimulated Raman scattering显示文摘The influence of second-order dispersion(SOD)on stimulated Raman scattering(SRS)in the interaction of an ultrashort intense laser with plasma was investigated.More significant backward SRS was observed with the increase of the absolute value of SOD(|ψ2|).The integrated intensity of the scattered light is positively correlated to the driver laser pulse duration.Accompanied by the side SRS,filaments with different angles along the laser propagation direction were observed in the transverse shadowgraph.A model incorporating Landau damping and above-threshold ionization was developed to explain the SOD-dependent angular distribution of the filaments. | Yanqing Deng Dongning Yue Mufei Luo Xu Zhao Yaojun Li Xulei Ge Feng Liu Suming Weng Min Chen Xiaohui Yuan Jie Zhang | 2022 | High Power Laser Science and Engineering2022，10，6： | 0 |
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