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Applications of bio-derived/bio-inspired materials in the field of interfacial solar steam generation

Nano Research 2022年第4期15卷 3122-3142页

作者： Yang Geng Kai jiao Xu liu Peijin ying Omololu Odunmbaku Yaoxin Zhang Swee Ching Tan ling li Wei Zhang Meng li MOE Key Laboratory of Low-grade Energy Utilization Technologies and Systems CQU-NUS Renewable Energy Materials&Devices Joint LaboratorySchool of Energy&Power EngineeringChongqing UniversityChongqing 400044China Key Laboratory of Thermo-Fluid Science and Engineering of MOE School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049China Department of Materials Science and Engineering CQU-NUS Renewable Energy Materials&Devices Joint LaboratoryNational University of SingaporeSingapore 117573Singapore Department of Mechanical Engineering Virginia Polytechnic Institute and State UniversityBlacksburgVA 24061USA Chongqing Institute of Green and Intelligent Technology Chinese Academy of SciencesChongqing 400714China

Interfacial solar steam generation(ISSG)system has attracted extensive attention as a sustainable desalination technology because of its cost efficiency and zero fossil-energy *** at optimizing the desalination properties,materials and system design have been the current research ***,many novel bio-derived/bio-inspired design strategies were proposed owing to their highly efficient structures inherited from nature,which were fine-tuned over eons of evolution,as well as their low cost and ease of *** this review,we are going to systematically report recent progress of various bio-derived/bio-inspired strategies in terms of optical design,wetting,thermal management,and overall system design,presenting an overview of the current challenges of bio-inspired materials in ISSG system and other application *** article is intended to provide a comprehensive review of recent developments about bio-derived/bio-inspired materials in ISSG system and conclude with suggestions regarding further research directions for performance enhancement through design of bio-derived/bio-inspired materials.

关键词： interfacial solar steam generation bio-derived materials bio-inspired materials solar-thermal conversion thermal management

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Time-varying output feedback H∞control for switched systems based on mixed switching

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Journal of Control and Decision 2022年第3期9卷 364-371页

作者： jiao li College of Science Dalian Minzu UniversityDalianPeople’s Republic of China

This article investigates time-varying dynamic output feedbackH∞control problem for discretetime switched systems by using a time-varying Lyapunov *** rule that depends on available information provided by measured output and time simultaneously is designed for the system with all unstable *** for l2-gain performance and time-varying controller synthesis are obtained under this switching *** provides a more general framework of analyzing discrete-time switched linear systems as it contains the min-switching as special cases when dwell time is not ***,an example shows the effectiveness of the proposed method.

关键词： Switched systems switching rule mixed switching time-varying output feedback H∞control

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Identifying Scale-location Specific Control on Vegetation Distribution in Mountain-hill Region

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Journal of Mountain Science 2013年第4期10卷 541-552页

作者： QIU Bing-wen ZENG Can-ying TANG Zheng-hong li Wei-jiao Aaron HIRSH Key Laboratory of Spatial Data Mining&Information Sharing of Ministry of Education Spatial Information Research Centre of Fujian Province Fuzhou University Community and Regional Planning Program University of Nebraska-Lincoln Department of Civil Engineering University of Nebraska-Lincoln

vegetation continuous The scale-location specific control on distribution was investigated through wavelet transforms approaches in subtropical mountain-hill region, Fujian, China. The Normalized Difference Vegetation Index （NDVI） was calculated as an indicator of vegetation greenness using Chinese Environmental Disaster Reduction Satellite images along latitudinal and longitudinal transects. Four scales of variations were identified from the local wavelet spectrum of NDVI, with much stronger wavelet variances observed at larger scales. The characteristic scale of vegetation distribution within mountainous and hilly regions in Southeast China was around 20 km. Significantly strong wavelet coherency was generally examined in regions with very diverse topography, typically characterized as small mountains and hills fractured by rivers and residents. The continuous wavelet based approaches provided valuable insight on the hierarchical structure and its corresponding characteristic scales of ecosystems, which might be applied in defining proper levels in multilevel models and optimal bandwidths in Geographically Weighted Regression.

关键词： NDVI Continuous wavelet transform Characteristic scale Mountain-hill region Scale-location specific

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Polycomb chromobox 4 enhances migration and pulmonary metastasis of hepatocellular carcinoma cell line MHCC97L

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Science China(life Sciences) 2014年第6期57卷 610-617页

作者： MEI Zhu jiao HuiKe WANG Wei li Jie CHEN GuoQiang XU ying Department of Pathophysiology Key Laboratory of Cell Differentiation and Apoptosis of Ministry of Education Ruijin Hospital Shanghai Jiao Tong University School of Medicine Institute of Health Sciences Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine

We recently report that the expression of polycomb chromobox 4(Cbx4)is significantly correlated with the overall survival of a great cohort of hepatocellular carcinoma(HCC)patients and it enhances hypoxia-induced vascular endothelial growth factor(VEGF)expression and angiogenesis in HCC cells through enhancing sumoylation of hypoxia inducible factor-1alpha(HIF-1α).Here we continue to investigate the potential effects of Cbx4 on the migration and metastasis of the metastatic HCC cell line *** results show that Cbx4 overexpression in the cell line increases the in vitro vessel formation of vascular endothelial cells in its SUMO interaction motifs-dependent manner,and promotes the in vitro migration of the cancer cell,which can be effectively abrogated by anti-VEGF *** Cbx4 expression does not impact the in vitro growth of MHCC97L cells,it still promotes the progression and metastasis of orthotopically transplanted tumors in nude *** results further support the role of Cbx4 as a SUMO E3 ligase in the progression and metastasis of HCC.

关键词： polycomb chromobox 4 hepatocellular carcinoma vascular endothelial growth factor metastasis

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Sumoylation of hypoxia inducible factor-1α and its significance in cancer

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Science China(life Sciences) 2014年第7期57卷 657-664页

作者： li Jie XU ying jiao HuiKe WANG Wei MEI Zhu CHEN GuoQiang Department of Pathophysiology Chemical Biology Division of Shanghai Universities E-InstitutesKey Laboratory of Cell Differentiation and Apoptosis of Ministry of EducationShanghai Jiao Tong University School of Medicine Institute of Health Sciences Shanghai Institutes for Biological Sciences of Chinese Academy of Sciences & Shanghai Jiao Tong University School of Medicine

Hypoxia-inducible factor-1(HIF-1)is a key heterodimeric transcription factor for the cellular adaptive response to hypoxia,a common feature of the microenvironment in solid *** transcriptional activity,protein stabilization,protein-protein interactions and cellular localization of HIF-1α,an oxygen-sensitive subunit of HIF-1,are mainly modulated by various post-translational ***,we reported that polycomb chromobox 4(Cbx4)governs the transcriptional activity of HIF-1αby enhancing its sumoylation at K391 and K477,through which Cbx4 potentiates angiogenesis of hepatocellular *** review summarizes the current knowledge of HIF-1α sumoylation and its roles in the pathogenesis of cancer.

关键词： HIF-1α sumoylation cancer

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基于局部关系特征和注意力机制的交通事故预测方法

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北京理工大学学报 2025年第1期45卷 11-18页

作者：张亚辉李颖刘天恩燕山大学机械工程学院河北秦皇岛066004 北京理工大学机械与车辆学院北京100081

基于相机的事故预测方法主要是建立交通对象的全局关系,而缺乏对局部关系的考虑.为此,提出一种基于局部关系特征和注意力机制的预测模型,实现车载相机实时预测交通事故风险.该模型首先引入局部关系多图网络,捕捉车辆间的局部交互关系,... 详细信息

基于相机的事故预测方法主要是建立交通对象的全局关系,而缺乏对局部关系的考虑.为此,提出一种基于局部关系特征和注意力机制的预测模型,实现车载相机实时预测交通事故风险.该模型首先引入局部关系多图网络,捕捉车辆间的局部交互关系,解决交通对象的局部交互信息应用不充分的问题.其次利用动态空间注意力机制确定交通事故风险车辆.最后将门控循环网络和动态时间注意力机制联合,有效利用动态场景当前帧和历史帧间的时序信息.事故数据集的实验结果表明,该模型准确率达到73.78%,提前1.55s预测交通事故风险,同时单帧预测时间为1.65 ms,具有卓越的实时性.为交通事故风险预测提供一种有效的解决方案.

关键词：交通事故预测图神经网络注意力机制

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Defect Engineering:Can it Mitigate Strong Coulomb Effect of Mg^(2+)in Cathode Materials for Rechargeable Magnesium Batteries?

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Nano-Micro Letters 2025年第1期17卷 135-159页

作者： Zhengqing Fan Ruimin li Xin Zhang Wanyu Zhao Zhenghui Pan Xiaowei Yang School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Chemistry and Chemical Engineering Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China School of Materials Science and Engineering Tongji UniversityShanghai 201804People’s Republic of China

Rechargeable magnesium batteries(RMBs)have been considered a promising“post lithium-ion battery”system to meet the rapidly increasing demand of the emerging electric vehicle and grid energy storage ***,the sluggish diffusion kinetics of bivalent Mg^(2+)in the host material,related to the strong Coulomb effect between Mg^(2+)and host anion lattices,hinders their further development toward practical *** engineering,regarded as an effective strategy to break through the slow migration puzzle,has been validated in various cathode materials for *** this review,we first thoroughly understand the intrinsic mechanism of Mg^(2+)diffusion in cathode materials,from which the key factors affecting ion diffusion are further ***,the positive effects of purposely introduced defects,including vacancy and doping,and the corresponding strategies for introducing various defects are *** applications of defect engineering in cathode materials for RMBs with advanced electrochemical properties are also ***,the existing challenges and future perspectives of defect engineering in cathode materials for the overall high-performance RMBs are described.

关键词： Rechargeable magnesium battery Sluggish diffusion kinetic Defect engineering Cathode materials Ion migration

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Advances in plant cell type-specific genome-wide studies of gene expression

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Frontiers in Biology 2011年第5期6卷 384-389页

作者： ying WANG Yuling jiao Division of Biology California Institute of TechnologyPasadenaCA 91125USA State Key Laboratory of Plant Genomics Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China

Cell is the functional unit of *** study the complex interactions of systems of biological molecules,it is crucial to dissect these molecules at the cell *** recent years,major progresses have been made by plant biologists to profile gene expression in specific cell types at the genome-wide *** based on the isolation of cells,polysomes or nuclei have been developed and successfully used for studying the cell types from distinct organs of several plant *** cell-level data sets revealed previously unrecognized cellular properties,such as cell-specific gene expression modules and hormone response centers,and should serve as essential resources for functional genomic *** developed technologies are more affordable to many laboratories and should help to provide new insights at the cellular resolution in the near future.

关键词： transcriptome cell type plant

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Performance analysis on a filter-less frequency doubling generator with tunable phase shift based on dualpolarization modulation

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Optoelectronics Letters 2020年第3期16卷 190-194页

作者： HE Yong-jiao li Jing BAO ying-ying DONG Shu-hui Institute of lightwave Technology Beijing Jiaotong UniversityBeijing 100044China

A filter-less frequency doubling generator with tunable phase shift based on dual-polarization modulation is proposed and *** setup is composed with a continuous-wave laser,a dual-polarization Mach-Zehnder modulator and a linear polarizer followed by a *** modulator is used to generate frequency doubling modulation signals on orthogonal polarization *** tuning the polarization state before the polarizer,the initial phase of the generated microwave signal can be tuned *** the meantime,the signal amplitude will remain *** is found the generated signal's frequency is twice of the driven *** electrical phase shift can be tuned within full range((0°—360°).Without using any optical filter or wavelength-dependent component,this scheme is featured with good frequency tunability and multi-wavelength operation.

关键词： polarization tunable modulator

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Study on Suppressing Unreasonable Torque Ripple in SPMSM-DTC system 36

Study on Suppressing Unreasonable Torque Ripple in SPMSM-DTC...

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第36届中国控制会议

作者： Yaohua li Sen jiao Yafei Qu ying Wang School of automobile Chang’an University

ISBN: (纸本)9781538629185

In order to suppress unreasonable torque ripple of direct torque control（DTC） in surface permanent magnet synchronous motor（SPMSM）,the SPMSM-DTC mode is established and the effect of voltage vectors selected by switching table on torque is *** conclusion of the change in torque is contrary to expectation when the changes of stator flux and torque angle（angle between stator and rotor flux vector） is magnitude under some conditions is *** actual effect of voltage vectors on torque based on traditional switching table is opposite to the expectation and causes unreasonable torque ripple.A simplified voltage vector selection strategy for SPMSM was proposed,and the new voltage vector can avoid the condition of the torque ripple *** results shows that the voltage vector selection strategy proposed in this paper can always satisfy the control of torque,suppress unreasonable torque ripple.

关键词： SPMSM DTC Torque ripple Space vector modulation Simulink

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