检索结果-南通市图书馆

Distribution law and susceptibility of geohazards across a gradient belt of the Western Sichuan Plateau

Journal of Mountain Science 2024年第6期21卷 1849-1867页

作者： LI Tianbin WANG Jianfeng he chaoyang MENG Lubo LI Chaofei MA Junjie WEI Daqiang College of Environment and Civil Engineering Chengdu University of TechnologyChengdu 610059China State Key Laboratory of Geohazard Prevention and Geo-environment Protection Chengdu University of TechnologyChengdu 610059China

Across a gradient belt of the Western Sichuan Plateau,geohazards have seriously limited economic and social *** to incomplete statistics,15,673 geohazards have been recorded in the study *** order to mitigate the threat of geohazards to human engineering activities in the region,an overall understanding of the distribution pattern of geohazards and susceptibility assessment are *** this paper,a gradient belt of the Western Sichuan Plateau and its zoning criteria were ***,on the basis of relief amplitude,distance to faults,rainfall,and human activities,three indicators of endogenic process were introduced:Bouguer gravity anomaly gradient,vertical deformation gradient,and horizontal deformation ***,the distribution patterns of geohazards were investigated through mathematical statistics and ArcGIS *** randomly selecting 10,449 hazards,a geohazard susceptibility map was generated using the Information Value(IV)***,the IV model was validated against 5224 hazards using the Area Under Curve(AUC)*** results show that 47.6%of the geohazards were distributed in the zone of steep *** showed strong responses to distance to faults,human activities,and annual *** distribution of geohazards in the gradient belt of the Western Sichuan Plateau is more sensitive to vertical internal dynamics factors(such as vertical deformation gradient and Bouguer gravity anomaly gradient)without any apparent sensitivity to horizontal internal dynamics *** areas of high and very-high risk account for up to 32.22%,mainly distributed in the Longmenshan and Anning River *** to the AUC plot,the success rate of the IV model for generating the susceptibility map is 76%.This susceptibility map and geohazard distribution pattern can provide a reference for geological disaster monitoring,preparation of post-disaster emergency measures,and town planning.

关键词： Gradient belt Geohazards Distribution law Bouguer Gravity anomaly gradient Vertical deformation gradient Susceptibility

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

滑坡裂缝计时序数据实时异常检测分析

引用

岩石力学与工程学报 2024年第1期43卷 206-215页

作者：张磊巨能攀何朝阳解明礼张成强刘洋成都理工大学地质灾害防治与地质环境保护国家重点实验室四川成都610059 四川省自然资源厅四川成都610072

针对滑坡裂缝实时监测中异常数据难以有效识别这一问题,基于滑坡不同变形阶段建立偶然异常阈值,提出基于区间预测的时序数据实时异常检测方法,该方法考虑了数据间时序逻辑关系以及滑坡变形阶段关联信息。首先,通过差分自回归移动平均模... 详细信息

针对滑坡裂缝实时监测中异常数据难以有效识别这一问题,基于滑坡不同变形阶段建立偶然异常阈值,提出基于区间预测的时序数据实时异常检测方法,该方法考虑了数据间时序逻辑关系以及滑坡变形阶段关联信息。首先,通过差分自回归移动平均模型(autoregressive integrated moving average,ARIMA),提取裂缝计累计位移的时序特征,构建区间预测模型,并使用滑动窗口算法对其分割子序列进行预测;其次,利用预测值修正置信区间(α=0.05)来确定拟异常点,并为滑坡不同变形阶段设立偶然异常阈值;最后,通过组合异常识别得到异常信息。研究结果表明,该方法能准确识别数据异常值,且在时序数据实时异常检测上具有一定的普适性。将模型预测区间与异常值进行对比分析获得数据异常的实时可能性,可为滑坡监测预警智能化决策提供数据参考价值。

关键词：边坡工程滑坡时序模型实时异常检测监测预警

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

堆积层滑坡多源遥感动态演变特征分析研究

引用

武汉大学学报（信息科学版） 2024年第8期49卷 1482-1491页

作者：高志良解明礼巨能攀黄细超彭涛何朝阳大连理工大学海岸和近海工程国家重点实验室辽宁大连116023 大连理工大学岩石破裂与失稳研究所辽宁大连116023 国能大渡河流域水电开发有限公司四川成都610093 成都理工大学地质灾害防治与地质环境保护国家重点实验室四川成都610059 四川省地质调查院稀有稀土战略资源评价与利用四川省重点实验室四川成都610081

堆积层滑坡随库水位变动的响应规律是一个重要的研究课题,以往研究多采用地表位移实时监测数据耦合库水位数据开展分析,然而大多库岸边坡不具有开展专业监测的条件,这给滑坡的历史变形追溯带来一定困难。采用星载与机载平台多源立体化... 详细信息

堆积层滑坡随库水位变动的响应规律是一个重要的研究课题,以往研究多采用地表位移实时监测数据耦合库水位数据开展分析,然而大多库岸边坡不具有开展专业监测的条件,这给滑坡的历史变形追溯带来一定困难。采用星载与机载平台多源立体化观测技术,从多角度、多尺度监测瀑布沟水电站红岩子滑坡从蓄水至今10余年的变形演化规律。综合研究表明,红岩子滑坡这类蓄水、降雨诱发的蠕滑-拉裂式滑坡具有典型的长期性、缓慢性与季节性特征;长时间序列合成孔径雷达能够较为准确地捕捉到这些特征信息;多期次光学遥感影像比对分析可较为直观地显现出滑坡不同位置宏观变形破坏特征的差异性,机载LiDAR获取的地表点云信息进行植被剔除后可准确识别出长期蠕滑的滑坡要素变化,在以上工作基础上结合地质条件与地表滑坡调查开展工程地质分析,最终研判出滑坡成因机制、变形模式与未来发展趋势。该研究可为类似工程案例研究提供科学的思路和方法,对蓄水诱发的缓慢蠕滑型滑坡的防治提供一定参考。

关键词：堆积层滑坡蠕滑变形变形演化多源立体观测数据融合

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

蒙特梭利法多模式干预对老年认知衰弱患者执行功能和跌倒恐惧的影响

引用

河北医药 2024年第7期46卷 1056-1058,1062页

作者：徐笑周娟何朝阳吴娇娇江苏省宿迁市第一人民医院老年医学科 223800

目的探讨蒙特梭利法多模式干预对老年认知衰弱患者执行功能和跌倒恐惧的影响。方法选择江苏省宿迁市第一人民医院2021年2月至2022年10月收治的120例老年认知衰弱患者作为研究对象,按照干预方式不同,分为对照组和观察组,每组60例。其中... 详细信息

目的探讨蒙特梭利法多模式干预对老年认知衰弱患者执行功能和跌倒恐惧的影响。方法选择江苏省宿迁市第一人民医院2021年2月至2022年10月收治的120例老年认知衰弱患者作为研究对象,按照干预方式不同,分为对照组和观察组,每组60例。其中对照组给予常规方法进行干预,观察组给予蒙特梭利法多模式干预,干预时间均为6个月。比较2组患者干预前后认知功能、执行功能、跌倒恐惧及社会功能的影响。结果与干预前比较,2组患者干预后MoCA评分、BADS评分、MFES评分及个人整洁、社会兴趣、社会能力评分均明显升高,精神状态评分明显降低,且观察组患者干预后上述评分升高更为显著(P<0.05)。结论蒙特梭利法多模式干预老年认知衰弱患者,可有效提高其认知能力,改善跌到恐惧和执行功能,增强社会功能,具有一定的临床应用价值。

关键词：蒙特梭利法多模式老年认知衰弱执行功能跌倒恐惧

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

地质灾害多源基础数据结构体系及应用

引用

成都理工大学学报（自然科学版） 2024年第4期51卷 630-640,653页

作者：彭志忠袁飞云何朝阳李东来解明礼饶泽迅四川泸石高速公路有限责任公司成都610047 地质灾害防治与地质环境保护国家重点实验室(成都理工大学) 成都610059

地质灾害基础数据具有多源性、异构性、多尺度等特点,大量的数据没有形成统一的管理模式,共享程度较低。当前普遍施行的地质灾害数据管理,采用的是从多角度、多层面、多空间等对地质灾害体及其孕育环境表达的多尺度数据集,因此各类数据... 详细信息

地质灾害基础数据具有多源性、异构性、多尺度等特点,大量的数据没有形成统一的管理模式,共享程度较低。当前普遍施行的地质灾害数据管理,采用的是从多角度、多层面、多空间等对地质灾害体及其孕育环境表达的多尺度数据集,因此各类数据的表达形式、数据精度、数据质量、时间表达等多方面存在着较大的差异性。构建了地质灾害多源异构数据集成方法体系,系统总结了数据的结构特征与管理方法,结合数据结构特征,使用PostgreSQL数据库管理属性数据,使用MongoDB数据库集群进行管理,使用GeoServer平台进行空间数据服务发布。研发地质灾害大数据ETL工具,集成数据库驱动、数据库适配器、数据模型等模块,实现对多源异构地质灾害大数据的有效管理。研发了一体化数据管理可视化平台,实现对各类数据进行统一管理与集成,为地质灾害基础数据的统一管理提供了综合数据平台,为地质灾害的防灾减灾、应急决策等提供数据和平台支撑。

关键词：地质灾害基础数据属性数据空间数据多媒体数据数据集成

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Circulating proteomic biomarkers for diagnosing sporadic amyotrophic lateral sclerosis:a cross-sectional study

引用

Neural Regeneration Research 2024年第8期19卷 1842-1848页

作者： Lu he Qinming Zhou chaoyang Xiu Yaping Shao Dingding Shen Huanyu Meng Weidong Le Sheng Chen Department of Neurology and Institute of Neurology Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghaiChina Department of Neurology Hospital of Chengdu University of Traditional Chinese MedicineChengduSichuan ProvinceChina Center for Translational Research on Neurological Diseases the First Affiliated HospitalDalian Medical UniversityDalianLiaoning ProvinceChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Institute of Neurology Sichuan Academy of Medical Sciences-Sichuan Provincial HospitalChengduSichuan ProvinceChina Department of Neurology Xinrui HospitalWuxiJiangsu ProvinceChina

Biomarke rs are required for the early detection,prognosis prediction,and monitoring of amyotrophic lateral sclerosis,a progressive *** is an unbiased and quantitative method that can be used to detect neurochemical signatures to aid in the identification of candidate biomarke *** this study,we used a label-free quantitative proteomics approach to screen for substantially differentially regulated proteins in ten patients with sporadic amyotrophic lateral scle rosis compared with five healthy *** bstantial upregulation of serum proteins related to multiple functional clusters was observed in patients with spo radic amyotrophic lateral *** biomarke rs were selected based on functionality and expression *** validate the proteomics profiles,blood samples from an additional cohort comprising 100 patients with sporadic amyotrophic lateral sclerosis and 100 healthy controls were subjected to enzyme-linked immunosorbent *** substantially upregulated serum proteins in patients with spora dic amyotrophic lateral sclerosis were selected,of which the cathelicidin-related antimicrobial peptide demonstrated the best discriminative ability between patients with sporadic amyotrophic lateral sclerosis and healthy controls(area under the curve[AUC]=0.713,Pher enhance diagnostic accuracy,a multi-protein combined discriminant algorithm was developed incorporating five proteins(hemoglobin beta,cathelicidin-related antimicrobial peptide,talin-1,zyxin,and translationally-controlled tumor protein).The algo rithm achieved an AUC of 0.811 and a P-value ofhe diagnosis of sporadic amyotrophic lateral scle ***,the ability of candidate biomarkers to discriminate between early-stage amyotrophic lateral sclerosis patients and controls,as well as patients with different disease severities,was examined.A two-protein panel comprising talin-1 and transl

关键词： amyotrophic lateral sclerosis cathelicidin-related antimicrobial peptide hemoglobin label-free quantitative proteomics multi-protein combined diagnostic panel serum biomarkers talin-1 translationally-controlled tumor protein zyxin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Securing multi-chain consensus against diverse miner behavior attacks in blockchain networks

引用

Frontiers of Information Technology & Electronic Engineering 2024年第4期25卷 540-554页

作者： Wenbo ZHANG Tao WANG chaoyang ZHANG Jingyu FENG School of Cyberspace Security Xi’an University of Posts and TelecommunicationsXi’an 710121China Postal Savings Bank of China Xi’an 710000China

As cross-chain technologies enable interactions among different blockchains(hereinafter“chains”),multi-chain consensus is becoming increasingly important in blockchain ***,more attention has been paid to single-chain consensus ***-chain consensus schemes with trusted miner participation have not been considered,thus offering opportunities for malicious users to launch diverse miner behavior(DMB)attacks on different *** attackers can be friendly in the consensus process on some chains,called mask chains,to enhance their trust value,while on others,called kill chains,they engage in destructive behaviors on the *** this paper,we propose a multi-chain consensus scheme named Proof-of-DiscTrust(PoDT)to defend against DMB *** idea of distinctive trust(DiscTrust)is introduced to evaluate the trust value of each user across different *** trustworthiness of a user is split into local and global trust values.A dynamic behavior prediction scheme is designed to enforce DiscTrust to prevent an intensive DMB attacker from maintaining strong trust by alternately creating true or false blocks on the kill *** trusted miner selection algorithms for multi-chain environments can be implemented to select network miners,chain miners,and chain miner leaders,*** results show that PoDT is secure against DMB attacks and more effective than traditional consensus schemes in multi-chain environments.

关键词： Blockchain Cross-chain Trust mechanism Multi-chain consensus

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Toward a Learnable Climate Model in the Artificial Intelligence Era

引用

Advances in Atmospheric Sciences 2024年第7期41卷 1281-1288页

作者： Gang HUANG Ya WANG Yoo-Geun HAM Bin MU Weichen TAO chaoyang XIE State key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China University of Chinese Academy of Sciences Beijing 100049China Department of Environmental Planning Graduate School of Environmental StudiesSeoul National UniversitySeoul 08826South Korea School of Software Engineering Tongji UniversityShanghai 200092China

Artificial intelligence(AI)models have significantly impacted various areas of the atmospheric sciences,reshaping our approach to climate-related *** this AI-driven transformation,the foundational role of physics in climate science has occasionally been *** perspective suggests that the future of climate modeling involves a synergistic partnership between AI and physics,rather than an“either/or”*** controversies around current physical inconsistencies in large AI models,we stress the critical need for detailed dynamic diagnostics and physical ***,we provide illustrative examples to guide future assessments and constraints for AI *** AI integration with numerical models,we argue that offline AI parameterization schemes may fall short of achieving global optimality,emphasizing the importance of constructing online ***,we highlight the significance of fostering a community culture and propose the OCR(Open,Comparable,Reproducible)*** a better community culture and a deep integration of physics and AI,we contend that developing a learnable climate model,balancing AI and physics,is an achievable goal.

关键词： artificial intelligence deep learning learnable climate model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Tailored multifunctional hydrazine derivatives for efficient printable hole-conductive-free mesoscopic perovskite solar cells via enhancing defect passivation

引用

Journal of Energy Chemistry 2024年第8期95卷 357-363,I0008页

作者： Minghao Xia Ziwei Zheng Yanjie Cheng chaoyang Wang Zhaozhen Cui Guodong Zhang Jinwei Gonga Anyi Mei Hongwei Han Michael Grätzel Center for Mesoscopic Solar Cells Wuhan National Laboratory for OptoelectronicsKey Laboratory of Materials Chemistry for Energy Conversion and Storage of Ministry of EducationHuazhong University of Science and TechnologyWuhan 430074HubeiChina Key Laboratory of Flexible Electronics(KLoFE)&Institute of Advanced Materials(IAM) School of Flexible Electronics(Future Technologies)Nanjing Tech University(NanjingTech)Nanjing 211816JiangsuChina

The low-cost and easy large-scale fabrication advantages of printable mesoscopic perovskite solar cells(p-MPSCs)are overshadowed by their limited photovoltaic conversion efficiency(PCE).here,we introduce the hydrazide derivative of 4-Hydroxybenzoylhydrazine(4-HBH)to improve the PCE of p-MPSCs by inducing enhanced defect *** carbonyl and hydrazine groups in hydrazide groups present strong interaction with *** hydroxyl group,as an electron donor group,increases the electron cloud density of the hydrazide group in 4-HBH under the conjugation of the benzene ring,and thus enhances its interaction with ***,the hydroxy group itself interacts with perovskite and passivates defects *** hydrazine agents can also reduce I2and suppress the loss of iodine in perovskite films,which inhibits the formation of iodine-related ***,p-MPSCs with 4-HBH achieve a high PCE of 19.21%,and present well improved stability.

关键词： Printable mesoscopic perovskite solar cells Multifunctional hydrazine derivatives Cooperative coordination Conjugation redox activity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fine-tuning growth in gold nanostructures from achiral 2D to chiral 3D geometries

引用

Nano Research 2024年第7期17卷 6654-6660页

作者： Lili Tan Zhi Chen Chengyu Xiao Zhiyong Geng Yinran Jin chaoyang Wei Fei Teng Wenlong Fu Peng-peng Wang State Key Laboratory for Mechanical Behavior of Materials Shaanxi International Research Center for Soft MatterSchool of Materials Science and EngineeringXi’an Jiaotong UniversityXi’an 710049China

Enriching the library of chiral plasmonic structures is of significant importance in advancing their applicability across diverse domains such as biosensing,nanophotonics,and ***,employing triangle nanoplates as growth seeds,we synthesized a novel class of chiral-shaped plasmonic nanostructures through a wet chemical strategy with dipeptide as chiral inducers,including chiral tri-blade boomerangs,concave rhombic dodecahedrons,and *** structural diversity in chiral plasmonic nanostructures was elucidated through their continuous morphological evolution from two-dimensional to threedimensional *** fine-tuning of chiroptical properties was achieved by precisely manipulating crucial synthetic parameters such as the amount of chiral molecules,seeds,and gold precursor that significantly influenced chiral structure *** findings provide a promising avenue for enriching chiral materials with highly sophisticated structures,facilitating a fundamental understanding of the relationship between structural nuances and chiroptical properties.

关键词： plasmonic nanostructures geometric chirality circular dichroism fine-tuning

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：