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| 1 | Water quality evaluation based on improved fuzzy matter-element method显示文摘For natural water, method of water quality evaluation based on improved fuzzy matter-element evaluation method is presented. Two important parts are improved, the weights determining and fuzzy membership functions. The coefficient of variation of each indicator is used to determine the weight instead of traditional calculating superscales method. On the other hand, fuzzy matter-elements are constructed, and normal membership degrees are used instead of traditional trapezoidal ones. The composite fuzzy matter-elements with associated coefficient are constructed through associated transformation. The levels of natural water quality are determined according to the principle of maximum correlation. The improved fuzzy matter-element evaluation method is applied to evaluate water quality of the Luokou mainstream estuary at the first ten weeks in 2011 with the coefficient of variation method determining the weights. Water quality of Luokou mainstream estuary is dropping from level I to level II. The results of the improved evaluation method are basically the same as the official water quality. The variation coefficient method can reduce the workload, and overcome the adverse effects from abnormal values, compared with the traditional calculating superscales method. The results of improved fuzzy matter-element evaluation method are more credible than the ones of the traditional evaluation method. The improved evaluation method can use information of monitoring data more scientifically and comprehensively, and broaden a new evaluation method for water quality assessment. | Dongjun Liu Zhihong Zou | 2012 | Journal of Environmental Sciences2012,24,7: | 21 |
| 2 | Commissioning progress of the FAST显示文摘The Five-hundred-meter Aperture Spherical radio Telescope(FAST) was completed with its main structure installed on September 25, 2016, after which it entered the commissioning phase. This paper aims to introduce the commissioning progress of the FAST over the past two years. To improve its operational reliability and ensure effective observation time, FAST has been equipped with a real-time information system for the active reflector system and hierarchical commissioning scheme for the feed support system, which ultimately achieves safe operation of the two systems. For meeting the high-performance indices, a highprecision measurement system was set up based on the effective control methods that were implemented for the active reflector system and feed support system. Since the commissioning of the FAST, a low-frequency ultra-wideband receiver and 19-beam1.05-1.45 GHz receiver have been mainly used. Telescope efficiency, pointing accuracy, and system noise temperature were completely tested and ultimately achieved the acceptance indices of the telescope. The FAST has been in the process of national acceptance preparations and has begun to search for pulsars. In the future, it will still strive to improve its capabilities and expand its application prospects. | Peng Jiang YouLing Yue HengQian Gan Rui Yao Hui Li GaoFeng Pan JingHai Sun DongJun Yu HongFei Liu NingYu Tang Lei Qian JiGuang Lu Jun Yan Bo Peng ShuXin Zhang QiMing Wang Qi Li Di Li | 2019 | Science China(Physics,Mechanics & Astronomy)2019,62,5: | 11 |
| 3 | The first pulsar discovered by FAST显示文摘To assist with the commissioning [1] of the Five-hundredmeter Aperture Spherical radio Telescope (FAST), we performed a pulsar search, with the primary goal of developing and testing the pulsar data acquisition and processing pipelines. We tested and used three pipelines, two (Pl and P2 hereafter) searched for the periodic signature of pulsars whereas the other one was used to search for bright single pulses (P3 hereafter). | Lei Qian ZhiChen Pan Di Li George Hobbs WeiWei Zhu Pei Wang ZhiJie Liu YouLing Yue Yan Zhu HongFei Liu DongJun Yu JingHai Sun Peng Jiang GaoFeng Pan Hui Li HengQian Gan Rui Yao XiaoYao Xie Fernando Camilo Andrew Cameron Lei Zhang Shen Wang FAST Collaboration | 2019 | Science China(Physics,Mechanics & Astronomy)2019,62,5: | 3 |
| 4 | Reversible switching between normal and thermally activated delayed fluorescence towards “smart” and single compound whitelight luminescence via controllable conformational distribution显示文摘An organic compound exhibiting simultaneously reversible switch between its emission colors and luminescence mechanisms,possessing high contrast from deep blue normal fluorescence(NF) to yellow thermally activated delayed fluorescence(TADF),is reported. Based on these two complementary colors, white-light emission combining NF and TADF from a single compound can be achieved in various states. Experimental results and density functional theory calculations indicate that the controllable conformational distribution under thermal and mechanical activation is the mechanism responsible for the reversible switching behavior. | Zuozheng He Xinyi Cai Zhiheng Wang Dongjun Chen Yunchuan Li Haobin Zhao Kunkun Liu Yong Cao Shi-Jian Su | 2018 | Science China Chemistry2018,61,6: | 2 |
| 5 | Porous Properties of Nano-fibriform Silica from Natural Chrysotile显示文摘与 TEM 和物理煤气的吸附技术,多孔的性质 ofnano 纤维状的硅石(MLD:92.73%) 从天赋,纤蛇纹石在这篇论文被学习。Theresults 显示那多孔的 nano 纤维状的硅石源于 naturechrysotile 的八面的表完全溶解了的水镁石和有四面的表由酸的沥滤折叠的 Si-O。它的长度在微米或纳米规模。有毛孔的二种类型:在附近的纤维之中的毛孔和在 nanofiber 的毛孔。这些毛孔(在直径的不到 6.5 nm,主要 2.1 nm 和 3.8 nm ) 都属于中央毛孔。在纤维的毛孔在 SiO_2 粒子之中由那些组成,那些在总数,残余 nanotubes 和毛状的试管之中。Nano 纤维状的硅石作为 catalyzer 和填料的一个搬运人证明比传统的硅石好为增强橡胶和塑料。 | WANG Lijuan LU Anhuai WANG Changqiu LI Xuejun ZHENG Xishen ZHAO Dongjun LIU Rui | 2006 | Acta Geologica Sinica(English Edition)2006,80,2: | 2 |
| 6 | An Information Fusion Model of Innovation Alliances Based on the Bayesian Network显示文摘To solve the problem of information fusion from multiple sources in innovation alliances, an information fusion model based on the Bayesian network is presented. The multi-source information fusion process of innovation alliances was classified into three layers, namely, the information perception layer, the feature clustering layer,and the decision fusion layer. The agencies in the alliance were defined as sensors through which information is perceived and obtained, and the features were clustered. Finally, various types of information were fused by the innovation alliance based on the fusion algorithm to achieve complete and comprehensive information. The model was applied to a study on economic information prediction, where the accuracy of the fusion results was higher than that from a single source and the errors obtained were also smaller with the MPE less than 3%, which demonstrates the proposed fusion method is more effective and reasonable. This study provides a reasonable basis for decision-making of innovation alliances. | Jun Xia Yuqiang Feng Luning Liu Dongjun Liu | 2018 | Tsinghua Science and Technology2018,23,3: | 2 |
| 7 | A source term model of perturbation in a numerical study on flows around a slender body of revolution at a high angle of attack显示文摘A numerical study on flows around a slender body of revolution at a high angle of attack is conducted to investigate the influence of strength and circumferential angle of perturbation on flow asymmetry.A source term model is applied to simulate a real geometrical perturbation near the tip of the slender body.It can greatly facilitate the adjustment of perturbation strength.The results show that the bistable phenomenon does not appear any more at a small perturbation strength.For different perturbation strengths,the energy of the asymmetric perturbation flow experiences a similar spatial exponential growth regime with the same growth rate.The appearance of the bistable phenomenon is closely related to nonlinear saturation of the perturbation flow as perturbation strength increases. | Yang Liu,Dongjun Ma,Dejun Sun~*,Xieyuan Yin Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027,China | 2009 | Progress in Natural Science:Materials International2009,19,12: | 2 |
| 8 | Differential gene expression analysis between anagen and telogen of Capra hircus skin based on the de novo assembled transcriptome sequence显示文摘 | Teng Xu Xudong Guo Hui Wang Fei Hao Xiaoyuan Du Xiaoyu Gao Dongjun Liu | 2013 | Gene2013,,1: | 2 |
| 9 | PV-based virtual synchronous generator with variable inertia to enhance power system transient stability utilizing the energy storage system显示文摘The Photovoltaic(PV)plants are significantly different from the conventional synchronous generators in terms of physical and electrical characteristics,as it connects to the power grid through the voltage-source converters.High penetration PV in power system will bring several critical challenges to the safe operation of power grid including transient stability.To address this problem,the paper proposes a control strategy to help the PVs work like a synchronous generator with variable inertia by energy storage system(ESS).First,the overall control strategy of the PV-based virtual synchronous generator(PV-VSG)is illustrated.Then the control strategies for the variable inertia of the PV-VSG are designed to attenuate the transient energy of the power system after the fault.Simulation results of a simple power system show that the PV-VSG could utilize the energy preserved in the ESS to balance the transient energy variation of power grid after fault and improve the transient stability of the power system. | Ju Liu Dongjun Yang Wei Yao Rengcun Fang Hongsheng Zhao Bo Wang | 2017 | Protection and Control of Modern Power Systems2017,2,1: | 2 |
| 10 | Peroxisome proliferator activated receptor-γ ligands induced cell growth inhibition and its influence on matrix metalloproteinase activity in human myeloid leukemia cells显示文摘 | Jiajun Liu Huiling Lu Renwei Huang Dongjun Lin Xiangyuan Wu Qu Lin Xinyao Wu Jing Zheng Xianglin Pan Jun Peng Yuqin Song Maohong Zhang Ming Hou Feng Chen | 2005 | Cancer Chemotherapy and Pharmacology2005,,4: | 1 |
| 11 | Cu 2 O/Cu/TiO 2 nanotube Ohmic heterojunction arrays with enhanced photocatalytic hydrogen production activity显示文摘 | Zhonghua Li Jiawen Liu Dongjun Wang Yuan Gao Jun Shen | 2012 | International Journal of Hydrogen Energy2012,,8: | 1 |
| 12 | Cu 2 O/Cu/TiO 2 nanotube Ohmic heterojunction arrays with enhanced photocatalytic hydrogen production activity显示文摘 | Zhonghua Li Jiawen Liu Dongjun Wang Yuan Gao Jun Shen | 2012 | International Journal of Hydrogen Energy2012,,: | 1 |
| 13 | Antiproliferation effects of ponicidin on human myeloid leukemia cells in vitro 显示文摘 | Liu Jiajun Huang Renwei Lin Dongjun | 2005 | Oncol Rep2005,13,4: | 1 |
| 14 | The effect of cooling rate on the wear performance of a ZrCuAlAg bulk metallic glass显示文摘 | Yongjiang Huang Hongbo Fan Dongjun Wang Yu Sun Fangyu Liu Jun Shen Jianfei Sun J. Mi | 2014 | Materials and Design2014,,: | 1 |
| 15 | Effects of different feeder layers on culture of bovine embryonic stem cell-like cells in vitro显示文摘 | Shan Cong Guifang Cao Dongjun Liu | 2014 | Cytotechnology2014,,6: | 1 |
| 16 | Evaluation Model for Capability of Enterprise Agent Coalition Based on Information Fusion and Attribute Reduction显示文摘For the issue of evaluation of capability of enterprise agent coalition,an evaluation model based on information fusion and entropy weighting method is presented. The attribute reduction method is utilized to reduce indicators of the capability according to the theory of rough set. The new indicator system can be determined. Attribute reduction can also reduce the workload and remove the redundant information,when there are too many indicators or the indicators have strong correlation. The research complexity can be reduced and the efficiency can be improved. Entropy weighting method is used to determine the weights of the remaining indicators,and the importance of indicators is analyzed. The information fusion model based on nearest neighbor method is developed and utilized to evaluate the capability of multiple agent coalitions,compared to cloud evaluation model and D-S evidence method. Simulation results are reasonable and with obvious distinction. Thus they verify the effectiveness and feasibility of the model. The information fusion model can provide more scientific,rational decision support for choosing the best agent coalition,and provide innovative steps for the evaluation process of capability of agent coalitions. | Dongjun Liu Li Li Jiayang Wang | 2016 | Journal of Harbin Institute of Technology(New Series)2016,23,2: | 1 |
| 17 | Catalytic purification of acrylonitrile-containing exhaust gases from petrochemical industry by metal-doped mesoporous zeolites显示文摘 | Runduo Zhang Dongjun Shi Ning Liu Biaohua Chen Lianghua Wu Libin Wu Weimin Yang | 2015 | Catalysis Today2015,,: | 1 |
| 18 | Nano-fibriform production of silica from natural chrysotile显示文摘 | Lijuan Wang Anhuai Lu Changqiu Wang Xishen Zheng Dongjun Zhao Rui Liu | 2005 | Journal of Colloid And Interface Science2005,,2: | 1 |
| 19 | Anti-proliferative effects of oridonin on SPC-A-1 cells and its mechanism of action 显示文摘 | Liu Jiajun Huang Renwei Lin Dongjun | 2004 | J Int Med Res2004,32,6: | 1 |
| 20 | Environmental Effects of Micro- and Ultra-microchannel Structures of Natural Minerals显示文摘微隧道通常在 0.3 nm 的范围与孔指矿物质的结构的隧道到 2.0 跑。如此的微隧道包括, K 在 cryptomelane 充满的 Mn-O 八面体隧道,和 Si-O 和 Al-0 四角形的分子的筛构造的隧道在沸石由 Na 和 Ca 充满了,并且有效地有分子的筛的功能。这里,我们指出自然矿物质的 ultra-microchannels 与离子的筛的特征在 0.3 nm 下面有孔。矿物质长石的 ultra-microchannels,为地球的半团的财务“ scrust,因为孔是太小的,大部分被忽略了。在这个工作,我们在场那长石显示离子交换的某个度并且在高、低的温度下面拥有隧道结构的一个特征。在高温度, Na^+ 能进入长石的隧道。在直到 15.9% 的长石增加的 Na_-O 的 Thecontent。在中间的温度, Pb^(2+) 能也作为离子交换的结果进入长石的隧道,这样带到形成 ofPb 长石。在房间温度,大约 97.94%Cd^(2+) 能被移开, Cd 长石能被获得。这些现象显示长石的 ultra-microchannels 的典型效果,它可以为重金属污染和原子废物的处理作为一个潜力被建议。自然矿物质的 Theultra-microchannels 在移植和交换 ofgeomaterials 起了特殊作用。一些自然矿物质的微隧道的分子的筛有净化分子的煤气的污染的性质。并且很自然的矿物质的 ultra-microchannels 的离子的筛能净化离子的水污染。 | LU Anhuai HUANG Shanshan LIU Rui ZHAO Dongjun QIN Shan | 2006 | Acta Geologica Sinica(English Edition)2006,80,2: | 1 |