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Realization and application of geological cloud platform

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Big Earth Data 2020年第4期4卷 464-478页

作者： Gaodian Zhou Xinqing Wang Weitao Chen xianju li Zhanlong Chen Faculty of Computer Science China University of GeosciencesWuhanChina Faculty of Resources China University of GeosciencesWuhanChina Hubei Key Laboratory of Intelligent Geo-Information Processing China University of GeosciencesWuhanChina School of Geography and Information Engineering China University of GeosciencesWuhanChina

In recent years,with the progress of computer technology,some traditional industries such as geology are facing changes in industrial structure and application *** we try to apply big data and virtualization technology in the field of *** study aims at addressing the existing problems in geological applications,such as data sharing,data processing and computing performance.A Geological Cloud Platform has been designed and realized preliminarily with big data and virtualization *** application of the Geological Cloud Platform can be divided into two parts:1)to nest the geological computing model in cloud platform and visualize the results and 2)to use relevant software to conduct data analysis and processing in virtual machines of Windows or linux ***,we prospect Carlin-type deposits in Nevada by using the spatial data model ArcSDM in the virtual machine.

关键词： Geological cloud platform virtualization technology big data technology geological application Carlin-type deposits ArcSDM

Effects of RapidEye Imagery's Red-edge Band and Vegetation Indices on Land Cover Classification in an Arid Region

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Chinese Geographical Science 2017年第5期27卷 827-835页

作者： li xianju CHEN Gang liU Jingyi CHEN Weitao CHENG Xinwen liAO Yiwei College of Computer Science and Hubei Key Laboratory of Intelligent Geo-Information Processing China University of GeosciencesWuhan 430074China College of Marine Science and Technology China University of GeosciencesWuhan 430074China Laboratory of Geographic Information and Spatial Analysis Department of Geography and PlanningQueen's UniversityKingston ON K7L3N6Canada Faculty of Information Engineering China University of GeosciencesWuhan 430074China School of Electrical and Electronic Engineering Huazhong University of Science and TechnologyWuhan 430074China

Land cover classification(LCC) in arid regions is of great significance to the assessment, prediction, and management of land desertification. Some studies have shown that the red-edge band of RapidE ye images was effective for vegetation identification and could improve LCC accuracy. However, there has been no investigation of the effects of RapidE ye images' red-edge band and vegetation indices on LCC in arid regions where there are spectrally similar land covers mixed with very high or low vegetation coverage information and bare land. This study focused on a typical inland arid desert region located in Dunhuang Basin of northwestern China. First, five feature sets including or excluding the red-edge band and vegetation indices were constructed. Then, a land cover classification system involving plant communities was developed. Finally, random forest algorithm-based models with different feature sets were utilized for LCC. The conclusions drawn were as follows: 1) the red-edge band showed slight contribution to LCC accuracy; 2) vegetation indices had a significant positive effect on LCC; 3) simultaneous addition of the red-edge band and vegetation indices achieved a significant overall accuracy improvement(3.46% from 86.67%). In general, vegetation indices had larger effect than the red-edge band, and simultaneous addition of them significantly increased the accuracy of LCC in arid regions.

关键词： arid region land cover classification RapidEye red-edge band vegetation indices random forest Dunhuang Basin

Veratrilla baillonii Franch alleviate the symptoms of diabetes in type 2 diabetic rats induced by high-fat diet and streptozotocin

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Food Science and Human Wellness 2024年第3期13卷 1378-1389页

作者： Chunlan Yan Zhihao Zhang liqun Ma Xinyi Xu Muhammad Azhar xianju Huang Jianxun Shi Jun li College of life Sciences South-Central Minzu UniversityWuhan 430074China College of Pharmaceutical Science South-Central Minzu UniversityWuhan 430074China Department of Biosciences COMSATS University IslamabadSahiwal 57000Pakistan Zhejiang Pharmaceutical University Ningbo 315100China Ethnopharmacology Level 3 Laboratory National Administration of Traditional Chinese MedicineSouth-Central Minzu UniversityWuhan 430074China

Our previous research studies have shown that Veratrilla baillonii Franch,a food supplement used by ethnic minorities in Southwest China,has multiple pharmacological activities,such as detoxification,antiinflammatory,antioxidant,and anti-insulin ***,the detailed signal pathways for its salutary effect on damages in multiple organs due to type 2 diabetes mellitus(T2DM)remains *** current study is to evaluate the therapeutic effects of *** on T2DM rats and to explore the underlying *** T2DM rat model was successfully established by a high-sugar and high-fat diet(HFD)combination with intraperitoneal injection of a small dose of streptozotocin(STZ,35 mg/kg).Biochemical analysis and histopatholgical examinations were conducted to evaluate the anti-diabetic potential of water extracts of ***(WVBF).The results showed that the WVBF treatment can improve hyperglycemia and insulin resistance,ameliorate the liver,kidney and pancreas injuries via decreasing inflammatory cytokines such as IL-6 and TNF-α,and oxidative *** investigation suggested that WVBF modulates the signal transductions of the IRS1/PI3K/AKT/GLUT4 and AMPK *** findings demonstrate potentials of WVBF in the treatment of T2DM and possible mechanisms for its hepatoprotective activities.

关键词： Veratrilla baillonii Franch Type 2 diabetes mellitus liver injury Skeletal muscle GLUT4

Effect of Tempering Temperature on the Microstructure and Mechanical Properties of V Modified 12Cr2Mo1R Steel Plate

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Effect of Tempering Temperature on the Microstructure and Me...

第十届中国钢铁年会暨第六届宝钢学术年会

作者： liu Zili liu Chunming li xianju Zhang Hanqian Northeastern University Baoshan Iron & Steel Co. Ltd.

A V modified 12Cr2Mo1R steel plate for pressure vessel was developed to improve the strength of the plate. In this paper,the mechanical properties and microstructures of the newly developed steel plate treated with the same normalizing process but different tempering temperatures were studied by using the mechanical testing machine, the optic microscope and the SEM（Scanning Electron Microscope）. Generally, with increasing the tempering temperature from 700℃ to 740℃,the yield strength and tensile strength decreased sharply, while the elongation and reduction properties *** toughness of the plate increased with the increasing tempering *** amount of the carbides extracted from specimens with different tempering states was also studied by chemical method,the result indicated that the changing trend of the amount of the carbides had a direct correlation with the mechanical properties.

关键词： 12Cr2Mo1R modified pressure vessel carbide

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高脂饮食对小鼠胃蛋白质组表达水平的影响

生物工程学报 2018年第11期34卷 1840-1849页

作者：李先菊李志科赵文娟秦钧军事科学院军事医学研究院生命组学研究所、国家蛋白质科学中心·北京、北京蛋白质组研究中心蛋白质组学国家重点实验室北京102206 中国人民解放军空军军医大学(第四军医大学) 陕西西安710032

以高脂饮食小鼠为模型,多角度分析高脂饮食对小鼠胃蛋白组表达的影响。实验小鼠(C57BL/6)随机分配两组,实验组食用高脂饲料,对照组食用正常饲料,喂养110d后,把胃组织分为前胃、胃体和胃窦3个区分别进行蛋白质谱鉴定,随后比较两组实验的... 详细信息

以高脂饮食小鼠为模型,多角度分析高脂饮食对小鼠胃蛋白组表达的影响。实验小鼠(C57BL/6)随机分配两组,实验组食用高脂饲料,对照组食用正常饲料,喂养110d后,把胃组织分为前胃、胃体和胃窦3个区分别进行蛋白质谱鉴定,随后比较两组实验的蛋白表达谱,分别筛选两组之间的差异蛋白以及胃分区的差异蛋白(差异倍数≥2),并对其进行GO富集及蛋白相互作用网络分析。对照组和实验组共鉴定到9 307种蛋白,筛选特异性肽段≥1且重复实验中至少鉴定到2次的蛋白,最后剩余4 066种蛋白,其中对照组3654种,实验组3832种。进一步从生物功能角度整体分析了胃组织的蛋白表达谱,结果发现实验组小鼠胃组织中高表达蛋白主要参与蛋白稳定和运输等生物学过程。而在对胃分区差异蛋白的功能分析表明,前胃主要参与角质化和肌动蛋白组装相关生物学过程,且受饮食影响程度较小;胃体和胃窦主要执行消化功能,高脂饮食后对胃的基本消化功能并无显著影响,但与对照组相比,参与蛋白转运和脂肪代谢相关生物学过程的蛋白显著高表达。

关键词：高脂饮食胃蛋白质组学

Additives strategies to improving cycling stability of li metal batteries by modifying electrode electrolyte interphases

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Progress in Natural Science:Materials International 2024年第2期34卷 338-344页

作者： Yuan li Pengfei Huang Chunyu Cui Xiaoyuan Ma li Chen Zekun li linhai li Yuhong Tian School of Biological and Chemical Engineering Guangxi University of Science and Technology School of College of Chemistry and Chemical Engineering Hunan University Isky Future Energy Institute

li metal batteries（LMBs） have attracted much attention due to the ultra-high theoretical capacity of the li metal anode（LMA）.However,the uncontrollable dendrites growth and low coulombic efficiency hinder their practical ***,we explore 3,5-difluoropyridine（2F-BD） as a novel electrolyte additive to enable highperformance *** 2F-BD additive participates in and modifies the solvation structure of li ions by reducing the coordinated number of PF6-at the electrode surface,leading to the formation of a liF and li3N-rich solid electrolyte interphase（SEI）.The liF component increases the robustness of SEI and suppresses the formation of li dendrites,while the li3N component facilitates the transportation and reaction kinetics of li *** a result,the li‖li symmetric cell presents a stable cycling performance of up to 500 h at a current density of 1 mA *** coupling with liFePO4cathode,the obtained full cell achieves high specific capacities of 106.06 mA h g-1and 84.98 mA h g-1at 2.55 mA cm-2and 5.10 mA cm-2,respectively,and maintains a high capacity retention of84.0% after 1000 cycles at 0.13 mA cm-2,with an average cycling CE of 99.58%.

关键词： Electrolyte additive li dendrites li metal batteries liF and li3N-Rich electrode-electrolyte interphase liFePO4 cathode

基于深度特征的双极化SAR遥感图像岩性自动分类

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地球科学 2022年第11期47卷 4267-4279页

作者：李发森李显巨陈伟涛董玉森李雨柯王力哲中国地质大学计算机学院湖北武汉430078 中国地质调查局牡丹江自然资源综合调查中心黑龙江牡丹江157000

基于像元基元、极化合成孔径雷达(Synthetic Aperture Radar,SAR)数据和传统机器学习算法的岩性分类方法,易受SAR图像固有斑点噪声影响,精度不高.为了降低噪声的影响,本研究以大尺度像元邻域为基元,用于表征地表地质体的遥感图像特征和... 详细信息

基于像元基元、极化合成孔径雷达(Synthetic Aperture Radar,SAR)数据和传统机器学习算法的岩性分类方法,易受SAR图像固有斑点噪声影响,精度不高.为了降低噪声的影响,本研究以大尺度像元邻域为基元,用于表征地表地质体的遥感图像特征和岩性语义信息;采用高分三号双极化SAR数据进行极化分解构建3通道假彩色合成影像;然后采用深度卷积神经网络(Deep Convolutional Neural Network,DCNN)迁移学习的方法,提取有效的深度特征表示,分别实现5 m和15 m两种空间分辨率下岩性遥感自动分类.结果表明:基于不同分辨率数据和不同DCNN算法,岩性遥感自动分类的总精度均大于80%,最高精度达到91%.基于大尺度像元邻域和DCNN迁移学习方法,能够实现基于SAR数据的高精度岩性分类.

关键词：遥感岩性分类迁移学习卷积神经网络高分三号 SAR

Leaching kinetics of fluorine during the aluminum removal from spent li-ion battery cathode materials

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Journal of Environmental Sciences 2024年第4期138卷 312-325页

作者： Shengjie li Jianxin Zhu Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

The high content of aluminum(Al)impurity in the recycled cathode powder seriously affects the extraction efficiency of Nickel,Cobalt,Manganese,and lithium resources and the actual commercial value of recycled materials,so Al removal is crucially important to conform to the industrial standard of spent li-ion battery cathode *** this work,we systematically investigated the leaching process and optimum conditions associated with Al removal from the cathode powder materials collected in a wet cathode-powder peeling and recycling production line of spent li-ion batteries(liBs).Moreover,we specifically studied the leaching of fluorine(F)synergistically happened along with the removal process of Al,which was not concerned about in other studies,but one of the key factors affecting pollution prevention in the recovery *** mechanism of the whole process including the leaching of Al and F from the cathode powder was indicated by using NMR,FTIR,and XPS,and a defluoridation process was preliminarily investigated in this *** leaching kinetics of Al could be successfully described by the shrinking core model,controlled by the diffusion process and the activation energy was 11.14 kJ/***,the leaching of F was attributed to the dissolution of liPF6and decomposition of PVDF,and the kinetics associated was described by Avrami *** interaction of Al and F is advantageous to realize the defluoridation to some *** is expected that our investigation will provide theoretical support for the large-scale recycling of spent liBs.

关键词： Al removal F leaching Cathode powder Heating alkali leaching Leaching kinetics

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北京自然口语中的“是不是”

现代语文 2019年第6期 35-41页

作者：李咸菊中国人民武装警察部队特种警察学院基础部

通过对“是不是”虚化为话语标记过程的探讨,认为北京口语中“是不是”表疑问的语用功能显现出一个由强到弱到无的连续链,它发端于有疑而问,经过疑问功能的减弱、消失,成为“非问”的话语标记成分。功能上的迁移变化是由于“是不是”在... 详细信息

通过对“是不是”虚化为话语标记过程的探讨,认为北京口语中“是不是”表疑问的语用功能显现出一个由强到弱到无的连续链,它发端于有疑而问,经过疑问功能的减弱、消失,成为“非问”的话语标记成分。功能上的迁移变化是由于“是不是”在疑问结构体中语法位置的变化和凝固引起的。虚化为话语标记后,“是不是”除了含有与对方商议或进行求证的功能外,还说明说话人对听话人的关注,努力在自己与听话人之间建立起共同的交际背景,来实现交际中应遵循的礼貌原则。同时,话语标记“是不是”具有肯定、确认之前的旧信息和提示、凸显之后的新信息等话语功能。

关键词： “是不是” 疑问结构体语法化话语标记话语功能