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ANTI-PLANE ANALYSIS FOR ELliPTICAL INCLUSION IN MAGNETOELECTROELASTIC MATERIALS

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Acta Mechanica Solida Sinica 2009年第2期22卷 137-142页

作者： Gang li baolin Wang Jiecai Hart Shanyi Du Graduate School at Shenzhen Harbin Institute of Technology Harbin 150001 China

This paper considers the multi-field coupling in magneroelectroelastic composite materials consisting of the inclusion and the matrix are magnetoelectroelastic materials. The mechanical,electric and magnetic fields around an elliptical cylinder inclusion are formulated by complex potentials. Inside the inclusion,the strain,electric and magnetic fields are found to be uniform and vary with the shape of the ellipse. When the inclusion is reduced to a crack,along the interface,the strain,electric field strength and magnetic field strength equal the corresponding remote ones,which can be used as the boundary condition. Special cases,such as a rigid and permeable inclusion,a soft and impermeable inclusion,a line inclusion and a crack problem are discussed in detail.

关键词： fracture mechanics magnetoelectroelastic composites crack inclusion

Microseismic source location using deep learning:A coal mine case study in China

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第9期16卷 3407-3418页

作者： Yue Song Enyuan Wang Hengze Yang Chengfei liu baolin li Dong Chen School of Safety Engineering China University of Mining and TechnologyXuzhou221116China State Key Laboratory of Coal Mine Disaster Prevention and Control China University of Mining and TechnologyXuzhou221116China School of Environment and Safety Engineering North University of ChinaTaiyuan030051China State Key Laboratory for Geomechanics&Deep Underground Engineering China University of Mining TechnologyXuzhou221116China

Microseismic source location is crucial for the early warning of rockburst ***,the conventional methods face challenges in terms of the microseismic wave velocity and arrival time *** techniques,such as the full convolutional neural network(FCNN),can capture spatial information but struggle with complex microseismic *** the FCNN with the long shortterm memory(LSTM)network enables better time-series signal classification by integrating multiscale information and is therefore suitable for waveform *** LSTM-FCNN model does not require extensive data preprocessing and it simplifies the microseismic source location through feature *** this study,we utilized the LSTM-FCNN as a regression learning model to locate the seismic ***,the method of short-time-average/long-time-average(STA/LTA)arrival time picking was employed to augment spatiotemporal ***,oversampling the on-site data was performed to address the issue of data imbalance,and finally,the performance of LSTM-FCNN was ***,we compared the LSTM-FCNN model with previous deep-learning *** results demonstrated remarkable location capabilities with a mean absolute error(MAE)of only 7.16 *** model can realize swift training and high accuracy,thereby significantly improving risk warning of rockbursts.

关键词： Microseismic source location Rockburst Deep learning Intelligent early warning

A method of characterizing land-cover swap changes in the arid zone of China

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Frontiers of Earth Science 2016年第1期10卷 74-86页

作者： Yecheng YUAN baolin li Xizhang GAO Haijiang liU lili XU Chenghu ZHOU State Key Laboratory of Resources and Environmental Information System Institute of Geographical Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023 China China National Environment Monitoring Center Beijing 100012 China

Net area change analysis can dramatically underestimate total change of land cover, even sometimes seriously misinterpret ecological processes of the ecosystem, especially in arid or semiarid zones. In this paper, a suite of indices are presented to characterize land-cover swaps that may seriously damage the ecosystem in arid or semiarid zones, based on swap-change areas extracted from remotely sensed images. First, swap percentage of total area and swap intensity of total changes were used to determine the status of land-cover swap change in an area. Then, dominated swap category and individual swap- change intensity for a land-cover category were used to determine flagged land-cover swap-change categories. Finally, swap-change mode and Pielou＇s index were used to determine the land-cover swap-change processes of dominant categories. A case study is conducted using this approach, based on two land-cover maps in the 1980s and 2000 in Naiman Qi, Tongliao City, Inner Mongolia, China. This study shows that the approach can clearly quantify the severity and flagged classes of land-cover swap-change and reveal their relationship with ecological processes of the ecosystem. These results indicate that the approach can give deep insights into swap change, which can be very valuable to land-cover policy making and management.

关键词： land cover swap swap-change status flagged swap-change categories swap-change process arid/semiarid zone

16 Policies Influencing China Cosmetics Industry in the Next 10 Years

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China Detergent & Cosmetics 2021年第2期6卷 39-44页

作者： li baolin China Information Center of Daily Chemical Industry China

From the fundamental law to work instructions,policies have a profound influence on the rise and decline of one *** 2020,under the joint influences of the global pandemic affecting the fate of mankind,Sino-US trade friction,conclusion of RCEP,nationwide poverty alleviation and various policies,all industries are on the same boat and cosmetics industry is no“exception”.Along with the promulgation of Regulations on Supervision and Administration of Cosmetics,WeChat business is“officially recognized”,live commerce enters the second half,and national policies and cosmetics industrypresent a staggered and interlaced situation(in chronological order).

关键词： Influencing nationwide industry

Identifying factors that affect environmental air quality using geographical detectors in the NKEFAs of China

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Frontiers of Earth Science 2022年第2期16卷 499-512页

作者： Jie XU Haijiang liU baolin li Xizhang GAO Pingjing NIE Cong SUN Ziheng JIN Dechao ZHAI State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China China National Environmental Monitoring Centre Beijing 100012China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023China

The establishment of the National Key Ecological Function Areas(NKEFAs)is an important measure for national ecological security,but the current ecological and environmental evaluation of NKEFAs lacks research on the air quality in the *** study presented the current status of the air quality in the NKEFAs and its driving factors using the geographic detector q-statistic *** air quality in the NKEFAs was overall better than individual cities and urban agglomeration in eastern coast provinces of China,accounting for 9.21%of the days with air quality at Level III or *** primary air pollutant was PM_(10),followed by PM_(2.5),with lower concentrations of the remaining *** was more severe in the sand fixation areas,where air pollution was worst in spring and best in autumn,contrasting with other NKEFAs and individual cities and urban *** main influencing factors of air quality index(AQI)in the NKEFAs were land use type,wind speed,and relative humidity also weighted more heavily than factors such as industrial pollution and anthropogenic emissions,and most of these influence factors have two types of interactive effects:binary and nonlinear *** results indicated that air pollution in the NKEFAs was not related with the emission by intensive economic ***,the policies taking the NKEFAs as restricted development zones were effective,but the air pollution caused by PM_(10) also showed the ecological status in the NKEFAs,especially at sand fixation areas was not quite optimistic,and more strict environmental protection measures should be taken to improve the ecological status in these NKEFAs.

关键词： air environmental quality geographical detectors air auality index spatiotemporal analysis

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呋喃衍生物:一类新兴的有机半导体材料

有机化学 2015年第12期35卷 2487-2506页

作者：李保林中国科学院大学化学与化工学院北京100049

π-共轭分子广泛用于有机场效应晶体管、有机太阳能电池、染料敏化太阳能电池和有机发光二极管等领域中.在π-共轭分子中引入呋喃环可以显著的改变分子的光学、电化学、电荷传输等性质.π-共轭呋喃衍生物由于具有载流子迁移率高、荧光... 详细信息

π-共轭分子广泛用于有机场效应晶体管、有机太阳能电池、染料敏化太阳能电池和有机发光二极管等领域中.在π-共轭分子中引入呋喃环可以显著的改变分子的光学、电化学、电荷传输等性质.π-共轭呋喃衍生物由于具有载流子迁移率高、荧光量子效率高以及溶解性好等特点,引起了国内外广泛的研究兴趣.实验和理论研究都已证明呋喃衍生物是一类优良的半导体材料,可以用于制得高性能的场效应晶体管、有机太阳能电池、染料敏化太阳能电池和有机发光二极管.作者在简单介绍呋喃衍生物特点的基础上,着重介绍了呋喃衍生物应用于制备有机场效应晶体管、有机太阳能电池、染料敏化太阳能电池和有机发光二极管等领域中的研究进展.

关键词：呋喃有机半导体材料场效应晶体管有机太阳能电池染料敏化太阳能电池有机发光二极管

Complementation of Wild-Type and Drug-Resistant Hepatitis B Virus Genomes to Maintain Viral Replication and Rescue Virion Production under Nucleos(t)ide Analogs

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Virologica Sinica 2019年第4期34卷 377-385页

作者： Chunchen Wu baolin li Xiaoyong Zhang Kaitao Zhao Yingshan Chen Yifei Yuan Yan liu Rongjuan Chen Dongping Xu Xinwen Chen Mengji Lu Department of Laboratory Medicine Maternal and Child Health Hospital of Hubei ProvinceTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430070China State Key Lab of Virology Wuhan Institute of VirologyChinese Academy of SciencesWuhan 430071China Institute of Virology University Hospital of Essen45122 EssenGermany University of Chinese Academy of Sciences Beijing 100049China Institute of Infectious Diseases and liver Failure Research Center Beijing 302 HospitalBeijing 100039China

As the open reading frames of hepatitis B virus(HBV)genomes are overlapping,resistance mutations(MTs)in HBV polymerase may result in stop codon MTs in hepatitis B surface proteins,which are usually detected as a mixed population with wild-type(WT)*** question was raised how the coexistence of nucleos(t)ide analogs(NAs)resistance MTs and WT sequences affects HBV *** the present study,HBV genomes with frequently detected reverse transcriptase(RT)/surface truncation MTs,rtA181T/sW172^*,rtV191I/sW182^*and rtM204I/sW196^*,were phenotypically characterized alone or together with their WT counterparts in different ratios by transient transfection in the absence or presence of *** the absence of Nas,RT/surface truncation MTs impaired the expression and secretion of HBV surface proteins,and had a dose-dependent negative effect on WT HBV virion ***,in the presence of Nas,coexistence of MTs with WT maintained viral replication,and the presence of WT was able to rescue the production of MT HBV *** findings reveal that complementation of WT and MT HBV genomes is highly effective under drug treatment.

关键词： Hepatitis B virus(HBV) Viral replication Nucleos(t)ide analogs resistance mutations Surface truncation mutation

Esterase-Activated Theranostic Prodrug for Dual Organelles-Targeted Imaging and Synergetic Chemo-Photodynamic Cancer Therapy

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CCS Chemistry 2022年第3期4卷 1028-1043页

作者： Jiabao Zhuang Nan li Yaling Zhang baolin li Hanqi Wen Xinchan Zhang Tianyu Zhang Na Zhao Ben Zhong Tang Key Laboratory of Macromolecular Science of Shaanxi Province Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an 710019 Department of Chemistry The Hong Kong Branch of Chinese National Engineering Research Center for Tissue Restoration and ReconstructionInstitute for Advanced StudyDepartment of Chemical and Biological EngineeringThe Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong 999077

Activatable prodrugs have received considerable attention in cancer therapy due to their high specificity and reduced side ***,the theranostic prodrug with multiple cancerous organelles targeting and combinational therapy is still *** this report,an esterase-responsive prodrug tetraphenylethylene functionalized quinolinium-ester-chlorambucil(TPEQC)was developed for dual organelles-targeted and image-guided cancer therapy through synergetic chemotherapy(CT)and photodynamic therapy(PDT).TPE-QC was constructed by conjugating an anticancer drug of chlorambucil with an aggregation-induced emission active photosensitizer of tetraphenylethylene functionalized hydroxyethyl quinolinium(TPE-QO)via the hydrolyzable ester *** fluorescence and photosensitization of TPE-QC were initially quenched because of the photoinduced electron transfer(PET)*** reacting with esterase,the ester group of TPE-QC could be selectively hydrolyzed to release chlorambucil and TPE-QO,which terminated the PET process and switched on the fluorescence and *** from the overexpressed esterase in cancer cells,TPE-QC could be efficiently activated in cancer cells rather than in normal cells,while the restoredfluorescence could preciselymonitor the release of ***,activated TPE-QC accumulated in both organelles of lysosome and mitochondria,resulting in enhanced anticancer *** vivo experiments demonstrated that TPE-QC displayed efficient tumor microenvironment-activatable features and excellent tumor therapeutic effects through combinational CT and PDT.

关键词： aggregation-induced emission esterase lysosome mitochondria photodynamic therapy chemotherapy

A systematic review of research studies on the estimation of net primary productivity in the Three-River Headwater Region, China

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Journal of Geographical Sciences 2017年第2期27卷 161-182页

作者： SUN Qingling li baolin ZHOU Chenghu li Fei ZHANG Zhijun DING lingling ZHANG Tao XU lili State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciencesand Natural Resources Research CAS Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023 China Remote Sensing Monitoring Center of Qinghai Ecology and Environment Xining 810007 China

The Three-River Headwater Region（TRHR）, known as the ＂Water Tower of China＂, is an important ecological shelter for national security interests and regional sustainable development activities for many downstream regions in China and a number of Southeast Asian countries. The TRHR is a high-elevation, cold environment with a unique, but typical alpine vegetation system. Net primary productivity（NPP） is a key vegetation parameter and ecological indicator that can reflect both natural environmental changes and carbon budget levels. Given the unique geographical environment and strategic location of the TRHR, many scholars have estimated NPP of the TRHR by using different methods; however, these estimates vary greatly for a number of reasons. To date, there is no paper that has reviewed and assessed NPP estimation studies conducted in the TRHR. Therefore, in this paper, we（1） summarized the related methods and results of NPP estimation in the TRHR in a systematic review of previous research;（2） discussed the suitability of existing methods for estimating NPP in the TRHR and highlighted the most significant challenges; and（3） assessed the estimated NPP results. Finally, developmental directions of NPP estimation in the TRHR were prospected.

关键词： Three-River Headwater Region(TRHR) net primary productivity(NPP) estimation methods NPP models ecological parameters