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Controlled Synthesis LaPO4 Nanorods via a Hydrothermal Route

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Controlled Synthesis LaPO4 Nanorods via a Hydrothermal Route

Study of Catalytic Pyrolysis of Chlorella with γ-Al2O3 Catalyst

第八届中国功能材料及其应用学术会议

作者： DAI Jie LIU Kai-li LI Xia College of Materials Science and technology Qingdao University of Science & Technology

ISBN: (纸本)9783037859698

LaPO nanorods have been selectively synthesized via a hydrothermal route,using La(NO) ·6HO and NaHPO as raw materials,without using any catalyst or template.X-ray diffraction(XRD),scanning electron microscopy(SEM),IR spectra(IR)and photo-luminescence(PL) spectra were used to characterize the as-prepared *** morphological changes of the products due to the different mole ratios of La(NO)·6HO and NaHPO were *** effect of the thermal treatment on the structure of the LaPO nanorods was also *** addition,the emission intensity of LaPO nanorods with different Eu doped concentration was compared and discussed.

关键词： Hydrothermal route Nanorods Luminescence Lanthanum phosphate

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Study of Catalytic Pyrolysis of Chlorella with γ-Al2O3 Cata...

A spatial geostatistical analysis of impact of land use development on groundwater resources in the Sangong Oasis Region using remote sensing imagery and data

第八届中国功能材料及其应用学术会议

作者： LIU Juan LI Xia GUO Qing-Jie College of Materials Science and technology Qingdao University of Science & Technology

ISBN: (纸本)9783037859698

Chlorella samples were pyrolysed in a fixed bed reactor with γ-AlOorZSM-5 molecular sieve catalyst at 600℃.Liquid oil samples was collected from pyrolysis experiments in a condenser and characterized for water content,kinematic viscosity and heating *** the presence of catalysts,gas yield decreased and liquid yield increased when compared with non-catalytic pyrolysis at the same ***,pyrolysis oil from catalytic with γ-AlOruns carries lower water content and lower viscosity and higher heating *** of two catalytic products,the results were showed that γ-AlO has a higher activity than that of ZSM-5 molecular *** acidity distribution in these samples has been measured by t.p.d,of ammonia,the γ-AlO shows a lower *** γ-AlO catalyst shows promise for production of high-quality bio-oil from algae via the catalytic pyrolysis.

关键词： chlorella bio-oil catalytic pyrolysis γAl2O3

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Journal of Arid Land 2009年第1期1卷 1-8页

作者： Chen, Xi Yan, JinFeng Chen, Zhi Luo, GePing Song, Qing Xu, WenQiang Chinese Acad Sci Key Lab Oasis Ecol & Desert Environm Urumqi 830011 Peoples R China Chinese Acad Sci Xinjiang Inst Ecol & Geog Urumqi 830011 Peoples R China Qindao univ Sci & technol Qingdao 266071 Peoples R China Concordia univ Dept Bldg Civil & Environm Engn Montreal PQ Canada

In this study, the relationship between land use and cover change (LUCC) and variation of groundwater level and quality in the Sangong Oasis Region was investigated using a spatial geostatistical approach. Specifically, interactions among groundwater, surface water, and LUCC were analyzed through the utilization of geographical information system (GIS), remote sensing (RS) Imagery processing, and geostatistics. Study outputs indicated that recharging into the groundwater did not change significantly during the period from 1978 to 1998. However, both LUCC and groundwater level changed substantially in the Sangong Oasis Region, and their variations were closely correlated to each other spatially and temporally over the past two decades. It confirmed that urbanization process and increased industrial activities were the direct reasons of groundwater table descending and the deterioration of water quality. The results of this research provided a scientific basis for understanding sustainability-related problems and solution options in the oasis areas of western China.

关键词： spatial analysis remote sensing LUCC groundwater Sangong Oasis Region

Rational TENG arrays as a panel for harvesting large-scale raindrop energy

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iEnergy 2023年第2期2卷 93-99页

作者： Zong Li Bin Cao Zhonghao Zhang Liming Wang Zhong Lin Wang State Grid qingdao Power Supply Company State GridQingdao 266002China Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhen 518055China China Electric Power Research Institute Beijing 100192China Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of SciencesBeijing 100083China School of Materials Science and Engineering Georgia Institute of Technol-ogyAtlantaGA30332-0245USA

Raindrops contain abundant renewable energy including both kinetic energy and electrostatic energy,and how to effectively harvest it becomes a hot research ***,a triboelectric nanogenerator(TENG)using liquid-solid contact electrification has been demonstrated for achieving an ultra-high instantaneous power ***,when harvesting the energy from the dense raindrops instead of a single droplet,a more rational structure to eliminate the mutual influence of individual generation units is needed for maximize the *** this work,a“solar panel-like”bridge array generators(BAGs)is *** adopting array lower electrodes(ALE)and bridge reflux structure(BRS),BAGs could minimize the sharp drop in the peak power output for large-scale energy harvesting *** the area of the raindrop energy harvesting device is 15×15 cm2,the peak power output of BAGs reached 200 W/m2,which is remarkable for paving a potential industrial approach for effective harvesting raindrop energy at a large scale.

关键词： Triboelectric nanogenerator(TENG) droplet energy harvesting bridge array generators(BAGs)

Study on curved surface fitting model using GPS and leveling in local area

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中国有色金属学会会刊：英文版 2005年第S1期15卷 148-152页

作者： GUO Jin-yun~1, CHANG Xiao-tao~2, YUE Qiang~3 (1. Department of Territory Information and Surveying Engineering, Xuzhou Normal university, Xuzhou 221009, China 2. Chinese Academy of Surveying and Mapping, Beijing 100039, China 3. Shandong university of Science and technology, qingdao 266510, China) Xuzhou Normal univ Dept Terr Informat & Surveying Engn Xuzhou 221009 Peoples R China Chinese Acad Surveying & Mapping Beijing 100039 Peoples R China Shandong univ Sci & technol Qingdao 266510 Peoples R China

The height anomaly surface is fitt and the quasi-geoid can be obtained when the height anomaly is determined with the geometric analytic method. Therefore, some mathematical models to fit height anomaly surface using GPS, leveling and terrain data in a local area, including the polynomial fitting model, the multi-surface function fitting model, the motion surface fitting model and the fitting model of little flexibility deformation of thin board, are given. Then the digital characteristics are analyzed with the curved surface theory. The General curvature and the mean curvature of surface are concluded. The advantage, disadvantage and application of the above models are discussed. The effect of terrain undulation on height anomaly is considered in the surface fitting models. The practical case indicates that these models are of validity and practicability. It is concluded that the above models can give the good fitting results at the centimeter level. But the polynomial fitting model is worse than the other models.

关键词： GPS height anomaly terrain effect curve surface fitting

Potential one-step strategy for PET degradation and PHB biosynthesis through co-cultivation of two engineered microorganisms

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Engineering Microbiology 2021年第1期1卷 3-10页

作者： Pan Liu Tong Zhang Yi Zheng Qingbin Li Tianyuan Su Qingsheng Qi State Key Laboratory of Microbial technology Shandong UniversityQingdao 266237China

The management and recycling of plastic waste is a challenging global *** terephthalate(PET),one of the most widely used synthetic plastics,can be hydrolyzed by a series of ***,upcycling the resulting monomers is also a *** this study,we designed a co-cultivation system,in which PET degradation was coupled with polyhydroxybutyrate(PHB)***,PETase from Ideonalla sakaiensis was expressed in Yarrowia lipolytica Po1f with a signal peptide from *** engineered PETase-producing *** was confirmed to hydrolyze bis(2-hydroxyethyl)terephthalate(BHET)and PET powder into the monomers terephthalate(TPA)and ethylene glycol(EG).Simultaneously,a TPA-degrading Pseudomonas stutzeri strain isolated from PET waste was transformed with a recombinant plasmid containing the phb CAB operon from Ralstonia eutropha,which encodes enzymes for the biosynthesis of *** two co-cultivated engineered microbes could directly hydrolyze BHET to produce the bioplastic PHB in one fermentation *** this process,5.16 g/L BHET was hydrolyzed in 12 h,and 3.66 wt%PHB(3.54 g/L cell dry weight)accumulated in 54 h.A total of 0.31g/L TPA was produced from the hydrolyzation of PET in 228 *** PHB could not be synthesized directly from PET because of the low hydrolyzing efficiency of PETase,this study provides a new strategy for the biodegradation and upcycling of PET waste by artificial microflora.

关键词： Polyethylene terephthalate Upcycling Polyhydroxybutyrate PETase co-cultivation Yarrowia lipolytica Pseudomonas stutzeri

Marine Engineering Geological Exploration Information System(MEGEIS):A GIS-based Application to Marine Resources Exploitation

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Journal of Ocean university of China 2007年第3期6卷 226-230页

作者： SU Tianyun LIU Baohua ZHAI Shikui LIANG Ruicai ZHENG Yanpeng Key Laboratory of Marine Sedimentology and Environmental Geology SOA Qingdao 266061 P. R. China First Institute of Oceanography SOA Qingdao 266061 P. R. China College of Marine Geo-science Ocean University of China Qingdao 266003 P. R. China

Based on the ArcGIS geographic information system and the ORACLE database management system,this paper reports our studies on the technology of Marine Engineering Geological Exploration Information System(MEGEIS). By analyzing system structure,designing function modules and discussing data management,this paper systematically proposes a framework of technol-ogy to integrate,manage,and analyze the seabed information comprehensively. Then,the technology is applied to the design and development of the Bohai Sea Oilfield Paradigm Area Information System. The system can not only meet the practical demands of marine resources exploration and exploitation in the Bohai Sea oilfield,but also serve as a preparatory work in theory and technology for the realization of the 'Digital Seabed'.

关键词： geographic information system (GIS) Digital Oilfield marine resources exploitation Digital Seabed Marine Engineering Geological Exploration Information System (MEGEIS)

Preparation of Kenaf Biochar and Its Adsorption Properties for Methylene Blue

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Journal of Renewable Materials 2023年第3期11卷 1352-1352页

作者： Xin Wan Zhigang Xia Xiaoli Yang Chengfeng Zhou Yuanming Zhang Haoxi Ben Guangting Han Wei Jiang qingdao univ Coll Text Qingdao 266000 Peoples R China qingdao univ State Key Lab Biofibers & Ecotext Qingdao 266071 Peoples R China Wuhan Text univ State Key Lab New Text Mat & Adv Proc Technol Wuhan 430000 Peoples R China Wuhan Text univ Minist Educ Key Lab Text Fiber & Prod Wuhan 430200 Peoples R China

The fourth author’s name in the original paper was incorrectly spelled as“Chenfeng Zhou”.The corrected spelling of the fourth author’s name is“Chengfeng Zhou”.The authors apologize for this error,which has now b... 详细信息

关键词： corrected Adsorption error

An Anticipatory Terminal Iterative Learning Control Approach with Applications to Constrained Batch Processes

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Chinese Journal of Chemical Engineering 2013年第3期21卷 271-275页

作者：池荣虎张德霞刘喜梅侯忠生金尚泰 School of Automation & Electronic Engineering Qingdao University of Science & Technology Qingdao 266042 China Advanced Control Systems Lab Beijing Jiaotong University Beijing 100044 China

This work presents an anticipatory terminal iterative learning control scheme for a class of batch proc- esses, where only the final system output is measurable and the control input is constant in each operations. The propgsed approach works well with input constraints provided that the desired control input with respect to the desired trajectory is within the samratiorl bound. The tracking error convergence is established with rigorous mathe- matical analysis. Simulation results .are provided to showthe effectiveness, of the proposed approach.

关键词： "terminal iterative learning control batch-to-batch processes input saturation convergence analysis