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Bioelectrochemistry for flexible control of biological processes

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Environmental Science and Ecotechnology 2020年第1期1卷 83-84页

作者： Annemiek ter Heijne Environmental Technology Wageningen University&ResearchBornse Weilanden 96708 WGWageningenthe Netherlands

Societal awareness and worries about the future of the earth are rapidly *** does not want to contribute to a sustainable future,in which the earth’s resources will still be available for future generations?In my view,a sustainable world is a world in which we live in close collaboration with *** nature,microorganisms are a key player in the global carbon,nitrogen and phosphorous cycle.

关键词： earth sustainable collaboration

Characterizing and optimizing magnetosome production of Magnetospirillum ***-1 isolated from Xi'an City Moat, China

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Characterizing and optimizing magnetosome production of Magn...

Bioactive potential of natural biomaterials: identification, retention and assessment of biological properties

中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： Yinzhao Wang Wei Lin Jinhua Li Tongwei Zhang Ying Li Jiesheng Tian Lixin Gu Yvan Vander Heyden Yongxin Pan Paleomagnetism and Geochronology Laboratory Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy of Sciences France-China Bio-Mineralization and Nano-Structures Laboratory Institute of Geology and Geophysics Chinese Academy of Sciences State Key Laboratories for Agro-biotechnology and College of Biological Sciences China Agricultural University Electron Microscope Laboratory Institute of Geology and Geophysics Chinese Academy of Sciences Department of Analytical Chemistry and Pharmaceutical Technology Vrije Universiteit Brussel-VUB

Pure culture of magnetotactic bacteria is desirable to understand their physiology, evolution and biomineralization. Here,we report a new strain Magnetospirillum sp. XM-1 that was recently isolated and cultivated from the eutrophic city moat of Xi’an, China. Magnetosome biomineralization, crystallographic and magnetic properties of XM-1 were characterized by using a combination of transmission electron microscopy and rock magnetic methods. Cell growth and magnetite production was optimized by response surface methodology. We found that the Magnetospirillum strain XM-1 is different from the model strain Magnetospirillum magneticum AMB-1 in terms of magnetite magnetosomes, optimal growth temperature and nutrient requirements. Sodium succinate, sodium nitrate and ferric citrate are the three most signiicant factors associated with the optimization of cell growth and magnetosome production for XM-1.

关键词： Magnetospirillum sp XM-1 magnetotactic bacteria magnetic properties magnetite formation magnetosome production response surface methodology optimization

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Signal Transduction and Targeted Therapy 2021年第4期6卷 1171-1198页

作者： Kieran Joyce Georgina Targa Fabra Yagmur Bozkurt Abhay Pandit School of Medicine National University of IrelandGalwayIreland CURAM SFI Research Centre for Medical DevicesNational University of IrelandGalwayIreland

Biomaterials have had an increasingly important role in recent decades,in biomedical device design and the development of tissue engineering solutions for cell delivery,drug delivery,device integration,tissue replacement,and *** is an increasing trend in tissue engineering to use natural substrates,such as macromolecules native to plants and animals to improve the biocompatibility and biodegradability of delivered *** the same time,these materials have favourable mechanical properties and often considered to be biologically *** importantly,these macromolecules possess innate functions and properties due to their unique chemical composition and structure,which increase their bioactivity and therapeutic potential in a wide range of *** much focus has been on integrating these materials into these devices via a spectrum of cross-linking mechanisms,little attention is drawn to residual bioactivity that is often hampered during isolation,purification,and production ***,we discuss methods of initial material characterisation to determine innate bioactivity,means of material processing including cross-linking,decellularisation,and purification techniques and finally,a biological assessment of retained bioactivity of a final *** review aims to address considerations for biomaterials design from natural polymers,through the optimisation and preservation of bioactive components that maximise the inherent bioactive potency of the substrate to promote tissue regeneration.

关键词： biomaterials linking potential

Disturbance attenuation for nonlinear systems with input matching uncertainty

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Disturbance attenuation for nonlinear systems with input mat...

Influences of soil moisture and salt content on loess shear strength in the Xining Basin, northeastern Qinghai-Tibet Plateau

第37届中国控制会议

作者： Tiantian Guo Xuejun Xie Institute of Automation Qufu Normal University

This paper investigates the problem of disturbance attenuation for a class of nonlinear systems with input matching uncertainty,whose nonlinearities are bounded by unmeasured states multiplying unknown input and output polynomial *** the technique of dynamic gain and extended state observer,an adaptive output feedback controller is designed to guarantee that the states of the closed-loop system are globally bounded,and the disturbance attenuation is achieved in the L-gain sense.

关键词： Nonlinear systems disturbance attenuation input matching uncertainty input and output polynomial functions

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Journal of Mountain Science 2019年第5期16卷 1184-1197页

作者： FU Jiang-tao HU Xia-song LI Xi-lai YU Dong-mei LIU Ya-bin YANG You-Qing QI Zhao-xin LI Shu-xia Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Institute of Salt Lakes Chinese Academy of Sciences Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes University of Chinese Academy of Sciences Department of Geological Engineering Qinghai University College of Agriculture and Animal Husbandry Qinghai University

Moisture and salt content of soil are the two predominant factors influencing its shear strength. This study aims to investigate the effects of these two factors on shear strength behavior of loess in the Xining Basin of Northeast Qinghai-Tibet Plateau, where such geological hazards as soil erosion, landslides collapse and debris flows are widespread due to the highly erodible loess. Salinized loess soil collected from the test site was desalinized through salt-leaching in the laboratory. The desalinized and oven-dried loess samples were also artificially moisturized and salinized in order to examine how soil salinity affects its shear strength at different moisture levels. Soil samples prepared in different ways(moisturizing, salt-leaching, and salinized) were measured to determine soil cohesion and internal friction angle. The results show that salt-leaching up to 18 rounds almost completely removed the salt content and considerably changed the physical components of loess, but the soil type remained unchanged. As salt content increases from 0.00% to 12.00%, both the cohesion and internal friction angle exhibit an initial decrease and then increase with salt content. As moisture content is 12.00%, the salt content threshold value for both cohesion and internal friction angle is identified as 3.00%. As the moisture content rises to 16.0% and 20.00%, the salt content threshold value for cohesion is still 6.00%, but 3.00% for internal friction angle. At these thresholds soil shear strength is the lowest, below which it is inversely related to soil salinity. Beyond the thresholds, however, the relationship is positive. Dissimilar to salinity, soil moisture content exerts an adverse effect on shear strength of loess. The findings of this study can provide a valuable guidance on stabilizing the engineering properties of salinized loess to prevent slope failures during heavy rainfall events.

关键词： Salinized loess Desalinized loess Salt-leaching Shear strength indices Moisture content Salt content

Inhibiting carbonate formation using CO_(2)-CO-C2+tandems

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SmartMat 2021年第4期2卷 423-425页

作者： Ning Wang Kaili Yao Alberto Vomiero Yuhang Wang Hongyan Liang School of Materials Science and Engineering Tianjin UniversityTianjinChina Key Laboratory of Efficient Utilization of Low and Medium Grade Energy Ministry of EducationTianjin UniversityTianjinChina Department of Electrical and Computer Engineering University of TorontoTorontoOntarioCanada Division of Materials Science LuleåUniversity of TechnologyLuleåSweden Department of Molecular Sciences and Nanosystems Ca'Foscari University of VeniceVeniceItaly Institute of Functional Nano&Soft Materials Jiangsu Key Laboratory of Carbon‐based Functional Materials and DevicesSoochow UniversitySuzhouJiangsuChina

As climate changes are increasingly challenging the sustainable development of human society,substantial efforts are expected to be added to limit the rise of global warming below 2°C by the middle of the 21st ***,human activities emit 34 billion tons of CO_(2) per annum on average.1 Energy production and chemical industries are particularly emission‐intensive due to the manufacturing and use of fossil‐based ***,manufacturing fuels and chemicals with netzero emission or,ideally,negative emission is paramount for achieving the long‐term goal of the Paris Agreement.

关键词： carbonate chemicals limit

Construction of Future Classroom in Primary School

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Construction of Future Classroom in Primary School

Social Construction Based on Long-Distance Water Diversion projects——A Case Study on the Yuqiao Reservoir in Tianjin

2013教育技术与信息系统国际会议

作者： Weimin Wu Xiaoping Liu Department of Education Technology Qingdao University Teachers College Qingdao University

Primary school is the foundation of an individual’s formal education. It is a prerequisite of the construction research to create an elementary school classroom environment that is comfortable, productive and suitable for children’s development. Future classroom is the major starting point of basic education conducted in classrooms. According to scientific theories and actual requirements we do the research for exploring future classroom’s features and functions, which differs from those of traditional classroom. We put more emphasis on future classroom’s people-orientation, harmony with nature, high intelligence, openness and frequent interaction etc. At last, we construct an ideal mode of future classroom consisting of physical architecture, resources and media, and teaching models.

关键词： Future Classroom Primary School Construction Traditional Classroom

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Chinese Journal of Urban and Environmental Studies 2015年第2期3卷 93-106页

作者： GU Jintu LUO Jing ORDERUD Geir Inge Research Center for Environment and Society Hohai University Institute of Chinese Borderland Studies Chinese Academy of Social Sciences Norwegian Institute for Urban and Regional Research

The exploding population in megacities and large cities has led to increasingly tight water supply,and large-scale cross-regional water diversion projects have arisen accordingly.A long-distance water diversion project creates environmental, economic, and social connections between the water source and receiving *** this paper, the Yuqiao Reservoir in Tianjin is taken as an *** severe situation of environmental pollution is introduced, and an analysis is conducted that the weaknesses of its current management measures are public service and social relations *** paper proposes the key concept of water relationship, defining it as a new-type, peer-to-peer, inter-area connection, and suggests that the construction should be steered in the four dimensions of social infrastructure, balanced mechanism design, environmental information communication, and mutual-aid environmental *** paper advocates that an environmental protection concept should be specifically directed, an action plan that gives balanced and reasonable consideration to public and private interests should be available for environmental actions, and environmental undertaking should be carried out on the basis of internal needs of participants.

关键词： Water relationship environmental community long-distance water diversion project the Yuqiao Reservoir

Efficient Resource Allocation Algorithm in Uplink OFDM-Based Cognitive Radio Networks

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Computers, Materials & Continua 2023年第5期75卷 3045-3064页

作者： Omar Abdulghafoor Musbah Shaat Ibraheem Shayea Ahmad Hamood Abdelzahir Abdelmaboud Ashraf Osman Ibrahim Fadhil Mukhlif Herish Badal Norafida Ithnin Ali Khadim Lwas Electronic&Telecommunications Engineering Department The American University of KurdistanDuhokKurdistan RegionIraq CTTC BarcelonaSpain Faculty of Electrical and Electronics Engineering Istanbul Technical UniversityIstanbulTurkey Department of Information Systems King Khalid UniversityMuhayel AseerSaudi Arabia Faculty of Computing and Informatics University Malaysia SabahKota KinabaluMalaysia Information Assurance and Security Research Group(IASRG) School of ComputingFaculty of EngineeringUniversiti Teknologi MalaysiaJohorMalaysia R&D Ministry of Industry and MineralsBaghdadIraq

The computational complexity of resource allocation processes,in cognitive radio networks(CRNs),is a major issue to be ***,the complicated solution of the optimal algorithm for handling resource allocation in CRNs makes it unsuitable to adopt in real-world applications where both cognitive users,CRs,and primary users,PUs,exist in the identical geographical ***,this work offers a primarily price-based power algorithm to reduce computational complexity in uplink scenarioswhile limiting interference to PUs to allowable ***,this paper,compared to other frameworks proposed in the literature,proposes a two-step approach to reduce the complexity of the proposed mathematical *** the first step,the subcarriers are assigned to the users of the CRN,while the cost function includes a pricing scheme to provide better power control algorithm with improved reliability proposed in the second *** main contribution of this paper is to lessen the complexity of the proposed algorithm and to offer flexibility in controlling the interference produced to the users of the primary networks,which has been achieved by including a pricing function in the proposed cost ***,the performance of the proposed power and subcarrier algorithm is confirmed for orthogonal frequency-division multiplexing(OFDM).Simulation results prove that the performance of the proposed algorithm is better than other algorithms,albeit with a lesser complexity of O(NM)+O(Nlog(N)).

关键词： Cognitive radio resource allocation OFDM pricing