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| 1 | Aircraft air conditioning system health state estimation and prediction for predictive maintenance显示文摘The vast potential of system health monitoring and condition based maintenance on modern commercial aircraft is being realized through the innovative use of Airplane Condition Monitoring System(ACMS) data.However there are few methods addressing the issues of failure prognostics and predictive maintenance for commercial aircraft Air Conditioning System(ACS).This study developed a Bayesian failure prognostics approach using ACMS data for predictive maintenance of ACS.First, a health index characterizing the ACS health state is inferred from a multiple sensor signals using a data driven method.Then a dynamic linear model is proposed to describe the degradation process for failure prognostics.Bayesian inference formulas are carried out for degradation estimation and prediction.The developed approach is applied on a passenger aircraft fleet with ACMS data recorded for one year.The analysis of the case study shows that the developed method can produce satisfactory prognostics results, where all the ACS failure precursors are identified in advance, and the relative errors for the failure time prediction made when just entering the degradation warning stage are less than 8%.This would allow operators to proactively plan future maintenance. | Jianzhong SUN Fangyuan WANG Shungang NING | 2020 | Chinese Journal of Aeronautics2020，33，3： | 7 |
| 2 | Degradation kinetics and mechanism of emerging contaminants in water by dielectric barrier discharge non-thermal plasma: The case of 17β-Estradiol显示文摘 | Lihong Gao Lei Sun Shungang Wan Zebin Yu Mingjie Li | 2013 | Chemical Engineering Journal2013，，： | 2 |
| 3 | A current decoupling parallel control strategy of single-phase inverter with voltage and current dual closed-loop feedback显示文摘 | Xu Shungang Wang Jinping Xu Jianping | 2013 | IEEE Transactions on Industrial Elec- tronics2013，60，4： | 1 |
| 4 | Reversible self-assembly of terpyridine-functionalized graphene oxide for energy conversion显示文摘 | Song Shungang Xue Yuhua Feng Lianfang | 2014 | Angewandte Chemie International Edition2014，53，5： | 1 |
| 5 | Anaerobic biological treatment of high strength cassava starch wastewater in a new type up-flow multistage anaerobic reactor显示文摘 | Lei Sun Shungang Wan Zebin Yu Yinghui Wang Shuangfei Wang | 2011 | Bioresource Technology2011，，： | 1 |
| 6 | Co-treatment ofsingle,binary and ternary mixture gas of ethanethiol,dimethyl disul-fide and thioanisole in a biotrickling filter seeded with Lysinibacil-lus sphaericus RG-1 显示文摘 | Wang Shungang Li Guiying An Taicheng | 2011 | Journal of Hazardous Materials2011，186，23： | 1 |
| 7 | One-step process for debromination and aerobic mineralization of tetrabromobisphenol-A by a novel Ochrobactrum sp. T isolated from an e-waste recycling site显示文摘 | Taicheng An Lei Zu Guiying Li Shungang Wan Bixian Mai Po Keung Wong | 2011 | Bioresource Technology2011，，19： | 1 |
| 8 | View synthesis based on the serial images from camera lengthways motion显示文摘For the pre-acquired serial images from camer a lengthways motion, a view synthesis algorithm based on epipolar geometry constra int is proposed in this paper. It uses the whole matching and maintaining order characters of the epipolar line, Fourier transform and dynamic programming match ing theories, thus truly synthesizing the destination image of current viewpoint . Through the combination of Fourier transform, epipolar geometry constraint and dynamic programming matching, the circumference distortion problem resulting fr om conventional view synthesis approaches is effectively avoided. The detailed i mplementation steps of this algorithm are given, and some running instances are presented to illustrate the results. | Zhang Jing Wang Changshun Liao Wuling Ou Zongying Hua Shungang | 2006 | Journal of Systems Engineering and Electronics2006，17，2： | 0 |
| 9 | Fast image retargeting based on strip dividing and resizing显示文摘Based on image strip dividing, an effective and fast image retargeting algorithm is proposed for resizing images. First,we construct the image energy map using gradient magnitude of the pixels and calculate the accumulated energy of each column,dividing the image into several strips by integrating similar energy columns. The reduced amount of dimension is decided in inverse proportion to the average energy for each strip. Then we retarget the image combining scaling with cropping in terms of each strip's reduced ratio. Experiment results show that the proposed algorithm is capable of implementing fast image retargeting and preserving both the local structures and the global visual effect of the image. | Shungang Hua Honglei Wei Tieming Su | 2014 | Journal of Systems Engineering and Electronics2014，25，6： | 0 |
| 10 | Effects of Microbial Fertilizers in Improving Acidic Tobacco-planting Soil and Tobacco Leaf Quality显示文摘[Objectives]This study was conducted to improve acidic soil and enhance the quality of tobacco leaves.[Methods]The effects of different microbial fertilizers on improving acidic tobacco-planting soil and tobacco leaf quality were investigated through plot experiments.[Results]The application of microbial fertilizers could improve the pH value of acidic soil,and composite microbial agent A showed the best application effect.The application of bio-organic fertilizer was beneficial to improving the contents of available phosphorus and available boron in acidic soil.The application of composite microbial agent A was beneficial to improving the contents of available phosphorus and available potassium in acidic soil,and could promote the growth of tobacco plants and improve the economic traits of flue-cured tobacco and the coordination of chemical components in tobacco leaves.The application of composite microbial agent B led to a downward trend in the content of available boron in acidic soil.The application of composite microbial agent B could promote the absorption of nutrients by tobacco plants,and improve their disease resistance and the quality of tobacco leaves.Due to the differences in functional microorganisms contained,the application effects of different microbial fertilizers in improving acidic tobacco-planting soil and improving tobacco leaf quality varied.Overall,the application of microbial fertilizers could increase soil pH,activate soil nutrients,promote tobacco growth,enhance disease resistance,increase tobacco output value,and improve tobacco quality.Microbial fertilizers have good application prospects in improving acidic soil and improving tobacco quality.[Conclusions]The application of microbial fertilizers to improve acidic tobacco-planting soil can ensure the normal growth and development of tobacco plants and the improvement of tobacco leaf quality,achieving high-quality and sustainable development of Zhaotong tobacco. | Xia NI Shungang SHEN Xianyi ZENG Dewen LI Yeming FU Min CHEN Chaokai YU Libing QI Ying-guo RUAN Changchong ZI Haohan GONG Guangjun HU Mengsheng ZHANG Xu ZHANG Shu PENG Hongbing LI | 2023 | Agricultural Biotechnology2023，12，2： | 0 |
| 11 | In-service aircraft engines turbine blades life prediction based on multi-modal operation and maintenance data显示文摘The in-service life of turbine blades directly affects the on-wing lifetime and operating cost of aircraft engines.It would be essential to accurately evaluate the remaining useful life of turbine blades for safe engine operation and reasonable maintenance decision-making.In this paper,a machine learning-based mechanism with multiple information fusion is proposed to predict the remaining useful life of high-pressure turbine blades.The developed method takes account of the in-service operating factors such as the high-pressure rotor speed and exhaust gas temperature,as well as the engine operating environments and performance degradation.The effectiveness of this method is demonstrated on simulated test cases generated by an integrated blade creep-life assessment model,which comprises engine performance,blade stress,thermal,and creep life estimation models.The results show that the proposed method provides a prospective result for in-service life evaluation of turbine blades and is of significance to evaluating the engine on-wing lifetime and making a reasonable maintenance plan. | He Liu Jianzhong Sun Shiying Lei Shungang Ning | 2021 | Propulsion and Power Research2021，10，4： | 0 |
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