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Journal of Materials Science & Technology 2017年第10期33卷 1182-1186页

作者： pengbo li Tiehu li Hongxia Yan School of Materials Science and Engineering Northwestern Polytechnical University Xi'an 710072 China Department of Applied Chemistry. School of Science Northwestern Polytechnical University. Xi'an 710072. China

Bismaleimide containing cyanate resin（BMI/CE） pre-ploymer was used as resin matrix. Fluorinated multiwalled carbon nanotubes（F-MWCNTs） were used as fillers to prepare F-MWCNT/BMI/CE nanocomposites via a solution intercalation method. The influence of F-MWCNT content on the mechanical, tribological and heat resistant properties of the nanocomposites was investigated. The morphology of the fracture surface and the wear surface of nanocomposites were characterized by scanning electron *** show that the addition of F-MWCNTs is beneficial to improving the mechanical and tribological properties of the nanocomposites. It＇s worth noting that when the content of F-MWNTs was 0.6 wt%, the performances of nanocomposite are optimized（i.e., highest impact strength, lowest frictional coefficient and wear rate）. In addition, the nanocomposites exhibit good thermal stability in comparison with BMI/CE.

关键词： Carbon nanotubes Nanocomposites Mechanical property Tribological properties Thermal stability

Construction and initial analysis of five Fosmid libraries of mitochondrial genomes of cotton(Gossypium)

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Chinese Science Bulletin 2013年第36期58卷 4608-4615页

作者： li ShuangShuang liU GuoZheng CHEN ZhiWen WANG YuMei li pengbo HUA JinPing Department of Plant Genetics and Breeding College of Agronomy and Biotechnology/Key Laboratory of Crop Heterosis and Utilization of Ministry of Education/Beijing Key Laboratory of Crop Genetic Improvement China Agricultural University Institute of Cash Crops Hubei Academy of Agricultural Sciences Cotton Research Institute Shanxi Academy of Agricultural Sciences

Cotton(Gossypium)is an important crop providing textile fiber and edible *** gain the insights into mechanism of the cytoplasmic male sterility(CMS)inheritance,we constructed five fosmid libraries of mitochondrial genomes from mitotype of *** Brandegee.(one CMS line and its restorer),mitotype of *** L.(one CMS line and its maintainer),and *** *** numbers of the clones in these libraries ranged from 1152 to 2016 with an average insert size of 36.2 to 38.4 kb,equivalent to 70–119.3 *** libraries were screened with 28 markers derived from the conservative sequences and yielded 22,19,26,21,and 23 positive clones,*** positive clones were used to construct the physical map of *** *** line and *** *** that shared six syntenis regions.A total of 30 genes in nine clusters showed conservative and had high similarity with those in the mitochondrial genomes of cotton,Carica papaya,Cucurbita pepo and Nicotiana *** investigation indicated that gene rrn26 had two copies in all five cotton mitogenomes,while genes atp1,rrn5 and rrn18 had two copies only in *** *** positive clones and physical map are considered being useful resources in cotton genomics research.

关键词：线粒体基因组粘粒文库棉花细胞质雄性不育系阳性克隆 CMS系保守序列物理图谱

A DAC-CLGD-Danet network based method for defaced image segmentation

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Intelligent and Converged Networks 2022年第3期3卷 294-308页

作者： pengbo li Gang li Yibin He ling Zhang Yuanjin Sun Fayun Guo College of Software Taiyuan University of TechnologyTaiyuan 030024China Information Technology Department Shanxi Taisen Technology Co.Ltd.Taiyuan 030082China

Based on the problems of high noise,lower contrast,and complex features in defaced images and the low accuracy of existing defaced image segmentation techniques,this paper proposes a defaced image segmentation algorithm based on ***,a CBDNet asymmetric blind denoising network is used for noise-containing defaced images,and natural and synthetic images are trained together to model the image noise and enhance the denoising ability of natural ***,Danet is used as the base network.A Dense Atrous Convolution module(DAC)is added to the dual attention mechanism module to extend the perceptual domain of deep convolution,reduce image feature loss,and enhance the representation of global information and edge features of defaced images;Cross-Level Gating Decoder module(CLGD)is introduced to lighten the segmentation network,enhance image context aggregation,and produce accurate semantic *** experimental results demonstrated that the method in this paper has a significant effect on the HRF dataset and Cityscapes dataset,with a significant improvement compared with FCN,UNet,and SETR models,with Intersection over Union(IoU)improved by 9.81%and Mean Intersection over Union(mIoU)improved by 3.01%compared with UNet.

关键词： image segmentation Danet deep learning neural networks defaced images

Drainage pattern recognition method considering local basin shape based on graph neural network

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International Journal of Digital Earth 2023年第1期16卷 593-619页

作者： Wenning Wang Haowen Yan Xiaomin Lu Yi He Tao liu Wende li pengbo li Fang Xu Faculty of Geomatics Lanzhou Jiaotong UniversityLanzhouPeople’s Republic of China Lanzhou Ji Er Ai Si Spatial Information Technology Company limited LanzhouPeople’s Republic of China National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring LanzhouPeople’s Republic of China Gansu Provincial Engineering Laboratory for National Geographic State Monitoring LanzhouPeople’s Republic of China People’s Republic of China Navigation Publication Press TianjinPeople’s Republic of China

Drainage pattern recognition is crucial for geospatial understanding and hydrologic ***,drainage pattern recognition methods employ geometric measures of overall and local features of river networks but lack measures of river basin unit shape features,so that potential correlations between river segments are usually ignored,resulting in poor drainage pattern recognition *** order to overcome this problem,this paper proposes a supervised graph neural network method that considers the local basin unit shape of river ***,based on the overall hierarchy of the river networks,the confluence angle of river segments and the shape of river basin units,multiple drainage pattern classification features are ***,typical drainage pattern samples from the multi-scale NSDI and USGS databases are used to complete the training,validation and testing *** results show that the drainage pattern indexes proposed can describe the characteristics of different drainage *** method can effectively sample the adjacent river segments,flexibly transfer the associated pattern features among river segment neighbours,and aggregate the deeper characteristics of the river networks,thus improving the drainage pattern recognition accuracy relative to other methods and reliably distinguishing different drainage patterns.

关键词： River drainage pattern recognition Basin unit shape supervised learning graph neural networks

Interface for micro-optical quantum state transfer with nitrogen-vacancy centers

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Interface for micro-optical quantum state transfer with nitr...

3 - 75 4D Imaging with a Siemens CT using a Respiration Monitoring System

第十七届全国量子光学学术会议

作者：李博 pengbo li 西安交通大学 Key Laboratory of Quantum Information and Quantum Optoelectronic Devices Shaanxi ProvinceDepartment of Applied PhysicsXi'an Jiaotong University

＜正＞An efficient scheme for microwave-optical photonic conversion using nitrogen-vacancy-center ensemble（NVE）is *** NVE is set in both an optical and superconducting coplanar waveguide（CPW）cavity and therefore coupled with them *** quantum states of two cavities would adiabatically swapped under properly laser modulation

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IMP & HIRFL Annual Report 2012年第1期 170-171页

作者： He pengbo li Qiang

Completed chloroplast genome sequences of five Gossypium species:genomic variation in size is mainly due to indels

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Completed chloroplast genome sequences of five Gossypium spe...

Genomic variation in size is major due to indels in chloroplast genomes in Gossypium

第十四届全国植物基因组学大会

作者： pengbo li Zhiwen Chen Jinping Hua Department of Plant Genetics and Breeding College of Agronomy and BiotechnologyKey Laboratory of Crop Heterosis and Utilization of Ministry of EducationBeijing Key Laboratory of Crop Genetic ImprovementChina Agricultural University

Cotton(Gossypium spp.) is a model system for analysis of plant chloroplast genomes size,owning 8 different genome groups,A,B,C,D,E,F,G,*** better understand the molecular basis of Gossypium chloroplast genome sizes from different groups,we characterized 5 completed cotton diploid chloroplast(cp) genome sequences,G. capitis-viridis,***,***,***,***,obtained from

关键词： cotton chloroplast genome sizes indels

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Genomic variation in size is major due to indels in chloropl...

Target Motion Compensation by Means of Adjustable Beam Slow-extraction： simulation

第十四届全国植物基因组学大会

作者： Zhiwen Chen pengbo li Qin Xu Jinping Hua Department of Plant Genetics and Breeding College of Agronomy and BiotechnologyKey Laboratory of Crop Heterosis and Utilization of Ministry of EducationBeijing Key Laboratory of Crop Genetic ImprovementChina Agricultural University Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau of Ministry of Agriculture Institute of Cotton ResearchShanxi Academy of Agricultural Sciences

Cotton(Gossypium spp.) is a model system for evolution analysis in which consists of 8 diploid sub-genome groups A,B,C,D,E,F,G,K and a tetraploid sub-genome group *** chloroplast genomes offer irreplaceable molecular ... 详细信息

关键词： cotton chloroplast genome sizes indels

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IMP & HIRFL Annual Report 2011年第1期 142-144页

作者： He pengbo li Qiang Dai Zhongying liu Xinguo

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“工匠精神”究竟是什么:一个整合性框架

吉首大学学报（社会科学版） 2020年第4期41卷 107-115页

作者：李朋波北京第二外国语学院旅游科学学院北京100024

当前工匠精神已被提升到国家层面,"弘扬工匠精神,厚植工匠文化"逐渐成为开展品质革命的重要助推力。现有研究主要从职业精神、道德伦理、组织文化和价值取向等4个基本视角对工匠精神进行界定,但存在着视角不够全面、层次较为单一的问题... 详细信息

当前工匠精神已被提升到国家层面,"弘扬工匠精神,厚植工匠文化"逐渐成为开展品质革命的重要助推力。现有研究主要从职业精神、道德伦理、组织文化和价值取向等4个基本视角对工匠精神进行界定,但存在着视角不够全面、层次较为单一的问题。为了更好地推动工匠精神研究及其相关实践开展需构建一个整合性的概念框架,即工匠精神包含品质追求、履职信念、职业承诺、能力素养、持续创新和传承关怀等6个维度,它们可从终极目标、业务技艺、职业态度和社会责任等4个方面系统地诠释工匠精神的丰富内涵。未来研究可以在该整合性框架的基础上开发相应的测量工具,进而探究工匠精神的影响前因、作用结果及其边界条件等。

关键词：工匠精神职业技艺品质