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| 1 | A Real-Time and Ubiquitous Network Attack Detection Based on Deep Belief Network and Support Vector Machine显示文摘In recent years, network traffic data have become larger and more complex, leading to higher possibilities of network intrusion. Traditional intrusion detection methods face difficulty in processing high-speed network data and cannot detect currently unknown attacks. Therefore, this paper proposes a network attack detection method combining a flow calculation and deep learning. The method consists of two parts: a real-time detection algorithm based on flow calculations and frequent patterns and a classification algorithm based on the deep belief network and support vector machine(DBN-SVM). Sliding window(SW) stream data processing enables real-time detection, and the DBN-SVM algorithm can improve classification accuracy. Finally, to verify the proposed method, a system is implemented.Based on the CICIDS2017 open source data set, a series of comparative experiments are conducted. The method's real-time detection efficiency is higher than that of traditional machine learning algorithms. The attack classification accuracy is 0.7 percentage points higher than that of a DBN, which is 2 percentage points higher than that of the integrated algorithm boosting and bagging methods. Hence, it is suitable for the real-time detection of high-speed network intrusions. | Hao Zhang Yongdan Li Zhihan Lv Arun Kumar Sangaiah Tao Huang | 2020 | IEEE/CAA Journal of Automatica Sinica2020，7，3： | 7 |
| 2 | Enhanced photocatalytic activity of quantum-dot-sensitized one-dimensionally-ordered ZnO nanorod photocatalyst显示文摘An efcient photocatalyst was fabricated by assembling quantum dots(QDs) onto one-dimensionally-ordered ZnO nanorods, and the photocatalytic properties for Methyl Orange degradation were investigated by scanning electron microscopy, transmission electron microscopy, X-ray difraction, UV-Vis-NIR absorption spectroscopy and photoluminescence. The results indicate that the catalyst with assembled QDs is more favorable for the degradation than the pristine ZnO nanorods. The QDs with core-shell structure lower the photocatalytic ability due to the higher carrier transport barrier of the ZnS shell layer. Besides its degradation efciency, the photocatalyst has several advantages given that the one-dimensionally-ordered ZnO nanorods have been grown directly on indium tin oxide substrates. The article provides a new method to design an efective and easily recyclable photocatalyst. | Jinzhao Huang Song Liu Lei Kuang Yongdan Zhao Tao Jiang Shiyou Liu Xijin Xu | 2013 | Journal of Environmental Sciences2013，25，12： | 5 |
| 3 | A high H_2 evolution rate under visible light of a CdS/TiO_2@Ni S catalyst due to a directional electron transfer between the phases显示文摘The photocatalytic activity of CdS can be greatly improved by co-modification of NiS and TiO_2 materials; furthermore the order of connection affects much. A directional electron transfer route via CdS → TiO_2→ NiS is found crucial to the enhancement of ternary catalyst, where TiO_2 acts as an electron reservoir and Ni S works as an effective cocatalyst. Cd S/TiO_2@Ni S with Ni S loaded on TiO_2 has an activity of H_2 evolution 2.5 times higher than NiS@Cd S/TiO_2 with Ni S pre-loaded on Cd S. Faster e-/h+separation rates is obtained of Cd S/TiO_2@Ni S under visible light than under extra UV light irradiation, which in turn demonstrates the importance of directional electron transfer route. | Jianling Meng Yongdan Li | 2019 | Chinese Journal of Chemical Engineering2019，27，3： | 4 |
| 4 | Synergistic depression mechanism of Ca^(2+) ions and sodium silicate on bastnaesite flotation显示文摘Bastnaesite is an important rare earth mineral and is usually beneficiated by flotation.Sodium silicate is commonly used to depress calcium-bearing gangue minerals,however it can also depress bastnaesite when Ca^(2+) ions exist in the pulp.In this study,the effect of Ca^(2+) ions and sodium silicate individually or in combination on bastnaesite flotation was studied through micro-flotation,zeta potential,fluorescence spectroscopy and X-ray photoelectron spectroscopy(XPS) measurements.Micro-flotation results show that the combination of Ca^(2+) ions and sodium silicate depresses bastnaesite more severely due to their synergistic effect.Zeta potential results show that the combination renders the surface potential of bastnaesite negatively shifted more significantly.Fluorescence spectroscopy shows that the combination decreases the surface hydrophobicity of bastnaesite more severely.XPS shows that the combination increases the adsorption of sodium silicate on bastnaesite by forming hydrophilic Ca-SiO_(3) precipitate,which causes more serious depression on bastnaesite flotation. | Zhao Cao Zeyu Cheng Jieliang Wang Yongdan Cao | 2022 | Journal of Rare Earths2022，40，6： | 3 |
| 5 | Joint Toxicity of Beauveria bassiana and Two Insect Growth Regulators on Beet Armyworm,Spodoptera exigua(Hübner)显示文摘Joint toxicity of Beauveria bassiana and two insect growth regulators,methoxyfenozide and hexaflumuron,on beet armyworm larvae,Spodoptera exigua(Hübner),were investigated.An obvious synergism effect of the two insect growth regulators with B.beauveria was observed.When the insect growth regulators at LC_(50) concentrations(25×10^(-6)g/L for methoxyfenozide and 1 000×10^(-6) g/L for hexaflumuron)were mixed with B.bassiana at the volume ratio of 4∶1,the mixtures achieved the best efficacy.The co-toxicity co-efficient(CTC)of methoxyfenozide and B.bassiana was 285,and that of hexaflumuron and B.bassiana was 208.Scanning electron microscope observation of the longitudinal section of S.exigua revealed obviously different patterns of integument in different treatment groups. | Hu Anling Tian Zhaofeng Gao Xiwu Nong Xiangqun Li Yongdan | 2016 | Plant Diseases and Pests2016，7，5： | 2 |
| 6 | Sustainable H2 production from ethanol steam reforming over a macro-mesoporous Ni/Mg-Al-O catalytic monolith显示文摘macro-meso-porous 整体的基于 Ni 的催化剂作为模板用聚苯乙烯泡沫经由一条受精线路被准备然后在乙醇改过生产 H2 富有的气体的蒸气使用了。Ni/Mg-Al 催化剂有一层次地由相片和扫描电子显微镜学(SEM ) 显示了的 macro-meso-porous 结构。催化剂的表面区域是 230 | Ruixue GU Guangming ZENG Jingjing SHAO Yuan LIU Johannes W. Schwank Yongdan LI | 2013 | Frontiers of Chemical Science and Engineering2013，7，3： | 2 |
| 7 | CARBON NANOTUBES VIA METHANE DECOMPOSITION ON AN ALUMINA SUPPORTED COBALT AEROGEL CATALYST显示文摘An alumina-supported cobalt aerogel catalyst prepared from a sol-gel and a supercritical drying method was used in the catalytic decomposition of methane. The physical-chemical properties of the catalyst were characterized and its activity for methane decomposition was investigated. The effects of calcination and reaction temperatures on the activity of the catalyst and the morphology of the carbon nanotubes produced were discussed. A CoAl2O4 spinel structure formed in the calcined catalyst. The quantity of the nanotubes produced in the reaction increases with the amount of cobalt in the reduced catalyst. A higher reaction temperature leads to a higher reaction rate, though faster deactivation of the catalyst occurs with the change. The carbon nanotubes grown on the catalyst have smooth walls and uniform di-ameter distribution. | Lingyu Piao, Jiuling Chen and Yongdan Li* Department of Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China | 2003 | China Particuology2003，1，6： | 2 |
| 8 | An efficient catalytic dehydration of fructose and sucrose to 5-hydroxymethylfurfural with protic ionic liquids 显示文摘 | Tong Xinli Ma Yang Li Yongdan | 2010 | Carbohydrate Research2010，345，12： | 1 |
| 9 | Understandings on the scattering property of the mechanical strength data of solid catalysts--A statistical analysis of iron-based high-tern perature water-gas shift catalysts显示文摘 | Li Yongdan Li Xiumin Liu Chang | 1999 | Catalysis Today1999，51，1： | 1 |
| 10 | Measurement and statistics of single pellet mechanical strength of different- ly shaped catalysts显示文摘 | Li Yongdan Wu Dongfang Zhang Jianpo | 2000 | Powder Technology2000，13，12： | 1 |
| 11 | Simultaneous production of hydrogen and nanocarbon from decomposition of methane on a nickel-based catalyst显示文摘 | Li Yongdan Chen Jiuling Qin Yongning | 2000 | Energy & Fuels2000，14，： | 1 |
| 12 | Formation of bamboo-shaped carbon filaments and dependence of their morphology on catalyst composition and reaction conditions显示文摘 | Jiuling Chen Yongdan Li Yanmei Ma | 2001 | Carbon2001，39，： | 1 |
| 13 | The doping effect of copper on the catalytic growth of carbon fibers from methane over a nikel-alumina catalyst prepared from Feitknecht compound precursor显示文摘 | Yongdan Li Jiuling Chen Liu Cheng | 1998 | J Catal1998，78，： | 1 |
| 14 | 显示文摘 | Li Yongdan Qian Weizhong Wei Fei | 2003 | Journal of Chemical Physics2003，118，： | 1 |
| 15 | Non-aqueous chromium acetylacetonate electrolyte for redox flow batteries显示文摘 | Liu Qinghua Shinkle Aaron A Li Yongdan Monroe Charles W Thompson Levi T Sleightholme Alice E S | 2010 | Electrochemistry Communications2010，12，11： | 1 |
| 16 | Non-aqueous manganese acetylacetonate electrolyte for redox flow batteries显示文摘 | Sleightholme Alice E S Shinkle Aaron A Liu Qinghua Li Yongdan Monroe Charles W Thompson Levi T | 2011 | Journal of Power Sources2011，196，13： | 1 |
| 17 | 显示文摘 | Lingyu Piao Yongdan Li Jiuling Chen | 2002 | catalysis today2002，74，： | 1 |
| 18 | Adsorption of L-phenylalanine on single-walled carbon nanotubes 显示文摘 | PIAO Lingyu LIU Quanrun LI Yongdan | 2008 | J Phys Chem C2008，112，8： | 1 |
| 19 | A non-aqueous all-cobalt redox flow battery using 1,10-phenanthrolinecobalt(11)hexafluorophosphate as active species显示文摘 | Xing Xueqi Zhang Dapeng Li Yongdan | 2015 | Journal of Power Sources2015，279，： | 1 |
| 20 | FTIR studies of xanthate adsorption on chalcopyrite, pentlandite and pyrite surfaces显示文摘 | Yahui Zhang Zhao Cao Yongdan Cao Chuanyao Sun | 2013 | Journal of Molecular Structure2013，，： | 1 |
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