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您的检索式：作者名="Zhou Leiyu"
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| 1 | Waste activated sludge hydrolysis and acidification: A comparison between sodium hydroxide and steel slag addition显示文摘Alkaline treatment with steel slag and NaOH addition were investigated under different pH conditions for the fermentation of waste activated sludge. Better performance was achieved in steel slag addition scenarios for both sludge hydrolysis and acidification. More solubilization of organic matters and much production of higher VFA(volatile fatty acid)in a shorter time can be achieved at pH 10 when adjusted by steel slag. Higher enzyme activities were also observed in steel slag addition scenarios under the same pH conditions.Phosphorus concentration in the supernatant increased with fermentation time and pH in NaOH addition scenarios, while in contrast most phosphorus was released and captured by steel slag simultaneously in steel slag addition scenarios. These results suggest that steel slag can be used as a substitute for NaOH in sludge alkaline treatment. | Ying Zhang Chaojie Zhang Xuan Zhang Leiyu Feng Yongmei Li Qi Zhou | 2016 | Journal of Environmental Sciences2016，28，10： | 5 |
| 2 | Catalytic pyrolysis of rice husk by mixing with zinc oxide: Characterization of bio-oil and its rheological behavior显示文摘 | Zhou Leiyu Yang Hongmin Wu Hao | 2013 | Fuel Processing Technology2013，，106： | 1 |
| 3 | Performance evaluation of complex systems using evidential reasoning approach with uncertain parameters显示文摘The composition of the modern aerospace system becomes more and more complex.The performance degradation of any device in the system may cause it difficult for the whole system to keep normal working states.Therefore,it is essential to evaluate the performance of complex aerospace systems.In this paper,the performance evaluation of complex aerospace systems is regarded as a Multi-Attribute Decision Analysis(MADA)problem.Based on the structure and working principle of the system,a new Evidential Reasoning(ER)based approach with uncertain parameters is proposed to construct a nonlinear optimization model to evaluate the system performance.In the model,the interval form is used to express the uncertainty,such as error in testing data and inaccuracy in expert knowledge.In order to analyze the subsystems that have a great impact on the performance of the system,the sensitivity analysis of the evaluation result is carried out,and the corresponding maintenance strategy is proposed.For a type of Inertial Measurement Unit(IMU)used in a rocket,the proposed method is employed to evaluate its performance.Then,the parameter sensitivity of the evaluation result is analyzed,and the main factors affecting the performance of IMU are obtained.Finally,the comparative study shows the effectiveness of the proposed method. | Leiyu CHEN Zhijie ZHOU Changhua HU Ruihua YUE Zhichao FENG | 2021 | Chinese Journal of Aeronautics2021，34，1： | 1 |
| 4 | Characterization and quantification of two acylated flavonol glycosides from Camellia sinensis and their antibacterial effect on oral pathogens显示文摘Acylated flavonol glycosides(AFGs)are a new group of flavonoids with multiple pharmacological functions.In the present work,two AFGs were isolated with a combined chromatography technology from Camellia sinensis and identified as quercetin tetraglycosides with one p-coumaryl moiety(F1)and kaempferol tetraglycosides with one p-coumaryl moiety(F2)by ultra-performance liquid chromatography tandem mass spectrometry(UPLC-MS/MS)and nuclear magnetic resonance(NMR).F1 and F2 with high purity and quantity can be obtained through relatively simple steps,which is of great significance in industrial production and application.The quantification of two AFGs in different tea cultivars and different season samples was conducted using the high-performance liquid chromatography(HPLC)method.Among fifty tested tea cultivars,the contents of F1 and F2 were extremely high in'Zhenghe Dabaicha'and'Wannong 95',but these were undetectable in some tea cultivars.Relatively high contents of AFGs were found in autumn harvested tea samples which might be related to sunlight irradiation.Further in vitro experiments showed that F1 and F2 monomers were effective on inhibiting growth and biofilm development of Porphyromonas gingivalis and Fusobacterium nucleatum.This antibacterial activity was proven to involve the chelation of iron.These results provide useful information on AFGsrich tea resources and new insights of AFGs into effective agents against oral diseases. | Feifei Zhou Leiyu Yang Yingjie Gu Zhiwei Ge Yanmei Huang Hangye Zhao Bo Li Puming He Jiangfan Yang Youying Tu Yuanyuan Wu | 2022 | Beverage Plant Research2022，2，1： | 0 |
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