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Finite-dimensional simple modular Lie superalgebra M

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Frontiers of mathematics in China 2013年第2期8卷 411-441页

作者： lili ma Liangyun CHEN Yongzheng ZHANG School of Science Qiqihar University Qiqihar 161006 China School of mathematics and Statistics Northeast Normal University Changchun 130024 China

A new family of finite-dimensional simple modular Lie superalgebra M is constructed based on results of Y. Z. Zhang and Q. C. Zhang [J. Algebra, 2009, 321： 3601-3619]. The simplicity and generators of M are discussed and the derivation superalgebra of M is characterized. Furthermore, the invariance of the nonnatural filtration of M is determined by the method of minimal dimension of image spaces.

关键词： Modular Lie superalgebra derivation superalgebra nonnatural filtration

Stellerite-seeded facile synthesis of zeolite X with excellent aqueous Cd^(2+)and Ni^(2+)adsorption performance

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Chinese Journal of Chemical Engineering 2022年第11期51卷 61-74页

作者： Yinchang Pei Shengpeng Mo Qinglin Xie Nanchun Chen Zhongxin Yang lili Huang lili ma College of Environmental Science and Engineering Guilin University of TechnologyGuilin 541006China Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area Guilin University of TechnologyGuilin 541006China College of material Science and Engineering Guilin University of TechnologyGuilin 541006China

Zeolite X was synthesized by a two-step hydrothermal method using natural stellerite zeolite as the silicon seed,and its adsorption performance for Cd^(2+)and Ni^(2+)ions was experimentally and comprehensively *** effects of p H,zeolite X dosage,contact time,and temperature on adsorption performance for Cd^(2+)and Ni^(2+)ions over were *** adsorption process was endothermic and spontaneous,and followed the pseudo-second-order kinetic and the Langmuir isotherm *** maximum adsorption capacitiesfor Cd^(2+)and Ni^(2+)ions at 298 K were 173.553 and 75.897 mg.g-1,*** exchange and precipitation were the principal mechanisms for the removal of Cd^(2+)ions from aqueous solutions by zeolite X,followed by electrostatic *** exchange was the principal mechanisms for the removal of Ni^(2+)ions from aqueous solutions by zeolite X,followed by electrostatic adsorption and *** zeolite X converted from stellerite zeolite has a low n(Si/Al),abundant hydroxyl groups,and high crystallinity and purity,imparting a good adsorption performance for Cd^(2+)and Ni^(2+)*** study suggests that zeolite X converted from stellerite zeolite could be a useful environmentally-friendly and effective tool for the removal of Cd^(2+)and Ni^(2+)ions from aqueous solutions.

关键词： Zeolite X Stellerite zeolite Adsorption mechanism Cd^(2+)adsorption Ni^(2+)adsorption Ion exchange

Research on central village selection in western underdeveloped region:a case study of Lidian Town,Jingning County,Gansu Province,China

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Chinese Journal of Population,Resources and Environment 2016年第3期16卷 174-181页

作者： lili ma Shuang An School of Economics & management Lanzhou Jiaotong University Hunan Architectural Design Institute

Central village selection is the priority of small town *** on the development potential analysis,classification analysis,and quantitative and qualitative analysis,this article systematically proposes the specific methods of central village selection and also constructs the indicator system used in central village selection in small towns of western underdeveloped region in *** article also puts forward ideas and methods for selection of central village in the western underdeveloped region through an empirical research on Lidian Town,Jingning County,Gansu *** the final part,suggestions and recommendations on how to develop central village for Lidian Town are made.

关键词： Small town construction selection of central village indicator system western underdeveloped region

A Predictive Model of Enhanced Oil Recovery by Infill Drilling and Its Application

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Petroleum Science 2007年第3期4卷 47-50页

作者： Xu Jianhong Cheng Linsong ma lili School of Petroleum Engineering China University of Petroleum Beijing 102249 China The Fourth Production Factory Daqing Oilfield Daqing Helongjiang 163511 China

Infill drilling is now recognized as a viable improved recovery process. However, the reliable prediction of incremental recovery by infill drilling cannot be readily and accurately determined by present techniques. This paper proposes a hybrid predictive model of stream tube simulation and numerical simulation by using the contemporary theory of fluid flow in porous media. The model calculates the geometries of stream tubes, remaining oil distribution and water cut at different development stages in the near future, and uses a three-dimensional simulation to track fluid movement in each stream tube slice. This will help reservoir engineers to determine the feasibility of infill drilling. This predictive model is used to forecast the degree of control of well pattern, the ultimate incremental recovery of infill wells within an inverted 5-spot case in an oilfield and the economic benefit is also analyzed.

关键词： Predictive model infill drilling stream tube numerical simulation recovery process

The Agency of matter in Brian Castro’s The Garden Book

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Journal of Foreign Languages and Cultures 2022年第2期6卷 44-55页

作者： lili ma Daoxian Zhong Hebei Normal University

This paper examines the non-human actants in Brian Castro's novel The Garden Book,including nature,the human body,and human artifacts in light of Jane Bennett's theory of vibrant matter and Castro's own arguments about the status of *** subverts the life-matter binary in this novel,giving attentiveness and respect to material powers,as well as affect and empathy to objects,thus undermining *** a pandemic era in which humans and non-humans are seen as more interconnected than ever,such empowerment and understanding are not only significant,but also necessary to build a harmonized community.

关键词： agency of matter non-human actant life-matter binary empathy

Synthesis of Cu_2O nanowhiskers with CTAB as a template in water-in-oil microemulsion system

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Rare Metals 2005年第3期24卷 283-287页

作者： YU Ying DU Feipeng ma lili LI Jialin ZHUANG Yuanyi QI Xinhua College of Physical Science and Technology Huazhong Normal University Wuhan 430079 China Department of Chemistry Huazhong University of Science and Technology Wuhan 430074 China College of Environmental Science and Engineering Nankai University Tianjin 300071 China

Dispersed cuprite （Cu2O） nanowhiskers were synthesized in a water/butanol/cyclohexane/cetyl trimethyl ammonium bromide （CTAB） water-in-oil microemulsion system at 25℃. The nanowhiskers with a diameter of about 8 am exhibit a well-crystallized one-dimensional （1D） structure over several hundreds nanometers in length and mainly grow along the 〈111〉 direction. However, without CTAB, only cubic and hexagonal bulks are obtained. Without emulsifier, short and thick nanowhiskers can be prepared but they are apt to agglomerate. The possible growth mechanism of Cu2O nanowhiskers is speculated. The surfactant and the microemulsion system are related to the 1D shape formation and the even dispersion of Cu2O nanomaterials, respectively.

关键词： Cu2O nanowhiskers microemulsion system CTAB preparation

A mussel-induced approach to secondary functional cross-linking 3-aminopropytriethoxysilane to modify the graphene oxide membrane for wastewater purification

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Chinese Chemical Letters 2023年第1期34卷 426-434页

作者： Wenwen Tu Yucheng Liu Mingyan Chen lili ma Lingli Li Bing Yang College of Chemistry and Chemical Engineering Southwest Petroleum UniversityChengdu 610500China Research Institute of Industrial Hazardous Waste Disposal and Resource Utilization Southwest Petroleum UniversityChengdu 610500China

Graphene oxide(GO)with one-atom-thick exhibit remarkable molecule sieving properties,but its low permeance flux renders it difficult to be applied in practice as a high-permeance separation *** this study,we design complex membrane from covalently crosslinked GO,polydopamine(PDA),and 3-aminopropytriethoxysilane(APTES)as building blocks to fabricate the high-permeance GO-based membrane via the vacuum filtration method.A branched crosslinking product(PDA/APTES)working as a clamp grasped the hydrophilic functional groups(hydroxyl,epoxy,carboxyl)on GO for improving the GO membrane *** interlayer structure of the GO membrane was optimized according to the crosslinker concentration,reaction time,initial p H,and temperature for RGO/PDA/APTES(RGPA)in this *** the optimized reaction conditions including the crosslinker concentration of 1.4 m L/L,the temperature of 80°C,the time of 16 h,and the initial p H of 8.5 for RGPA mixture,the interlayer gallery of RGPA membrane was effectively tunes,endowing high flux ranging from 11.98 L m^(-2)h^(-1)to 1823.97 L m^(-2)h^(-1).Besides,the RGPA membrane ensured the high rejections to dye solutions such as methylene blue(MB)(>99%)and congo red(CR)(>90%).Meanwhile,the superior reusable performance of the RGPA membrane was achieved,together with the rejections for MB and CR to 96.32%and 93.1%after 4 cycles,***,the RGPA membrane possessed superior anti-fouling performances for bovine serum albumin(BSA)aqueous solution and excellent stabilities in harsh conditions(p H 3,7 and 11).Grafting the crosslinker onto GO nanosheets exhibits the distinct advantages of achieving the high flux,high rejections to dyes,and superior reusable performance of membranes,posing a great application potential for membrane separation technology in wastewater treatment.

关键词： Cross-linked graphene oxide Polydopamine APTES High flux membranes Dye separation

Complexity of software trustworthiness and its dynamical statistical analysis methods

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Science in China(Series F) 2009年第9期52卷 1651-1657页

作者： ZHENG ZhiMing ma ShiLong LI Wei JIANG Xin WEI Wei ma lili TANG ShaoTing Key Laboratory of mathematics Informatics and Behavioral Semantics Ministry of Education Beihang University Beijing 100191 China State Key Laboratory of Software Development Environment Beihang University Beijing 100191 China School of mathematical Sciences Peking University Beijing 100871 China

Developing trusted softwares has become an important trend and a natural choice in the development of software technology and applications. At present, the method of measurement and assessment of software trustworthiness cannot guarantee safe and reliable operations of software systems completely and effectively. Based on the dynamical system study, this paper interprets the characteristics of be- haviors of software systems and the basic scientific problems of software trustworthiness complexity, analyzes the characteristics of complexity of software trustworthiness, and proposes to study the soft- ware trustworthiness measurement in terms of the complexity of software trustworthiness. Using the dynamical statistical analysis methods, the paper advances an invariant-measure based assessment method of software trustworthiness by statistical indices, and hereby provides a dynamical criterion for the untrustworthiness of software systems. By an example, the feasibility of the proposed dynamical statistical analysis method in software trustworthiness measurement is demonstrated using numerical simulations and theoretical analysis.

关键词： software trustworthiness trustworthiness attributes dynamical system invariant-measure

Green carbonization of waste coffee grounds into porous C/Fe hybrids for broadband and high-efficiency microwave absorption

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Journal of materials Science & Technology 2024年第3期170卷 1-10页

作者： Xin Wen Cui Li Hui Liu Guohua Fan Yanan Tang Chuncheng Hao lili ma Pingan Song Institute of Advanced Electrical materials College of Materials Science and EngineeringQingdao University of Science and TechnologyQingdao 266042China Center for Future materials University of Southern QueenslandSpringfieldQLD 4300Australia School of Agriculture and Environmental Science University of Southern QueenslandSpringfieldQLD 4300Australia

Recently great effort s have been focused on designing high-performance microwave absorbers using sustainable biomass resources,but there remains a lack of green and efficient fabrication ***,inspired by natural porous character of biomass waste,we demonstrated a green one-step route to convert waste coffee grounds into porous C/Fe hybrids,and further explored their potential applications for broadband and high-efficiency microwave *** this design,the WCG-20-750(incorporated 20 wt%Fe(C_(5)H_(7)O_(2))_(3)catalyst and carbonized at 750℃)exhibited porous microstructure with the highest char yield of 55.45 wt%.Furthermore,the as-prepared C/Fe hybrids from WCG-20-750 displayed excellent microwave absorption ***,the minimum reflection loss(RL_(min))reached to-52.86 dB and the widest effective absorption bandwidth(EAB)was 6.40 GHz at the thickness of 3.0 *** work provides an economically viable and environmentally friendly strategy to convert biomass wastes into value-added microwave absorbers,ultimately making contributions to the upcycling of renewable biomass resources and the fostering of sustainable environment.

关键词： Waste recycling Microwave absorption Green carbonization Porous carbon Biomass