检索结果-南通市图书馆

Delineation of urban growth boundary based on FLUS model under the perspective of land use evaluation in hilly mountainous areas

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Journal of Mountain Science 2024年第5期21卷 1647-1662页

作者： ZHANG Yunping lin jianping HUANG Yimin CHEN Zebin ZHU Chenhui YUAN Hao School of Geography and Environmental Engineering Gannan Normal UniversityGanzhou 341000China Key Laboratory of Low Carbon Recycling Technology for Municipal Solid Waste in Jiangxi Province Ganzhou 341000China

With rapid economic development,the size of urban land in China is expanding *** Urban Growth Boundary(UGB)is an expandable spatial boundary for urban construction in a certain period in order to control the urban *** delineation of UGB can inhibit the disorderly spread of urban space and guide the normal development of the *** is of practical significance for the construction of green urban *** study utilizes GIS technology to establish a land construction suitability evaluation system for Nankang city,which is experiencing rapid urban expansion,and outlines the preliminary UGB under the future land use simulation(FLUS)*** the same time,considering the coupled coordination of"Production-Living-Ecological Space",and based on the suitability evaluation,we revised the preliminary UGB by combining the advantages of the patch-generating land use simulation(PLUS)model and the convex hull model to delineate the final *** results show that:1)the comprehensive score of the evaluation of the suitability of the construction of land from high to low shows the distribution of the center of the city to the surrounding circle type spread,the center of the city has the highest suitability *** results of convex hull model show that the urban expansion type of Nankang is *** the future,the urban expansion will mainly occur in the northern part of the *** PLUS model predicts an increase of 3359.97 hm^(2)of construction land in Nankang by 2035,of which 2022.97 hm^(2)is urban construction land.2)The FLUS model has a prediction accuracy of 86.3%and delineates a preliminary UGB area of 9215.07 hm^(2).3)We used the results of the construction suitability evaluation,PLUS model simulation results,and convex hull model predictions to revise the originally delineated *** final delineated UGB area is 8895.67 hm^(2)and it is capable of meeting the future development of the study *** results of the delineation can promote

关键词： Urban sprawl FLUS model Spatial correction Urban growth boundary Sustainable development

用于夹层梁静动力及屈曲分析的新型组合结构单元

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浙江大学学报（工学版） 2024年第3期58卷 518-528页

作者：林建平陈昆潘剑超王冠楠冯倩华侨大学土木工程学院福建厦门361021 福建省智慧基础设施与监测重点实验室(华侨大学) 福建厦门361021 浙江大学建筑工程学院浙江杭州310058 公路数智养护浙江省工程研究中心浙江杭州310058

推导出新型组合结构单元,用于考虑界面滑移的3层部分作用夹层组合梁的静动力及屈曲特性分析.基于铁木辛柯梁理论,建立考虑夹层梁部分作用效应的能量原理.针对其受力特性,在节点位移、横截面转角和界面滑移插值时均采用含内部自由度的高... 详细信息

推导出新型组合结构单元,用于考虑界面滑移的3层部分作用夹层组合梁的静动力及屈曲特性分析.基于铁木辛柯梁理论,建立考虑夹层梁部分作用效应的能量原理.针对其受力特性,在节点位移、横截面转角和界面滑移插值时均采用含内部自由度的高阶插值函数,以解决含界面有限元数值分析中常遇到的“滑移锁定”现象.通过变分原理得到夹层梁的刚度矩阵、质量矩阵以及几何刚度矩阵的显示表达式.基于MATLAB编译相应夹层结构的有限元程序并验证其准确性.对不同截面3层夹层组合梁进行不同荷载条件和边界条件下的静动力及屈曲特性分析,并探讨不同夹层组合梁跨高比和不同界面抗剪连接刚度下的计算结果及其误差的变化规律.所推导的显示表达式新型组合结构单元计算效率高,并便于推广应用于其他有限元程序或商业软件子程序中.

关键词：夹层组合梁部分作用静动力分析刚度矩阵质量矩阵铁木辛柯梁理论

融媒体技术在图书馆数字资源建设中的应用探究——以闽西特色图书资源保护为例

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新闻研究导刊 2024年第2期15卷 164-166页

作者：林剑平中共龙岩市委党校福建龙岩364201

融媒体技术应用于图书馆数字资源建设可以推动图书馆实现数字化转型,有效丰富数字资源的表现形式。同时,应用融媒体技术可以很好地保护和传承地方特色文化,使文化资源得到数字化创新和弘扬。此外,成功的应用案例可以为其他图书馆的数字... 详细信息

融媒体技术应用于图书馆数字资源建设可以推动图书馆实现数字化转型,有效丰富数字资源的表现形式。同时,应用融媒体技术可以很好地保护和传承地方特色文化,使文化资源得到数字化创新和弘扬。此外,成功的应用案例可以为其他图书馆的数字资源建设提供借鉴,积累宝贵经验。文章以闽西特色图书资源保护项目为例,探讨融媒体技术在其数字资源建设中的应用,以期为图书馆数字资源建设提供参考。文章首先阐述融媒体技术的概念、特点及优势,介绍闽西地区的文化背景及特色图书资源现状。在此基础上,提出相应的数字资源建设方案,并重点探讨融媒体技术在该项目中的具体应用情况与取得的成效。文章采用文献研究和实地调研相结合的方法,通过收集和分析相关文献,了解国内外融媒体技术在图书馆数字资源建设中的应用案例,以及闽西地区特色图书资源的特点和需求。同时,进行实地调研,深入了解闽西地区的图书馆现状和数字资源建设的实际情况。在调研的基础上,结合融媒体技术的优势和特点,文章提出了适用于闽西地区特色图书资源保护的数字资源建设方案,并采取了相应的应用措施。研究结果显示,融媒体技术在闽西图书馆数字资源建设中发挥了重要作用,通过应用融媒体技术,图书馆成功实现了数字化转型,将闽西地区的特色图书资源以多媒体形式呈现,丰富了数字资源的表现形式。同时,融媒体技术的应用还促进了地方特色文化的保护和传承,使得文化资源得到了数字化创新和广泛传播。

关键词：融媒体技术数字资源特色文献图书馆借鉴意义

基于神经网络的大数据分析在智慧交通中的应用

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信息与电脑 2024年第4期36卷 16-18页

作者：林建平江西省通信产业服务有限公司江西南昌330009

为提升交通流量预测的准确性和效率,研究基于神经网络的大数据分析在智慧交通中的应用。首先深入探讨智慧交通系统的整体架构,其次研究基于层归一化的循环神经网络(Recurrent Neural Network,RNN)优化方法,最后进行实验分析。实验结果表... 详细信息

为提升交通流量预测的准确性和效率,研究基于神经网络的大数据分析在智慧交通中的应用。首先深入探讨智慧交通系统的整体架构,其次研究基于层归一化的循环神经网络(Recurrent Neural Network,RNN)优化方法,最后进行实验分析。实验结果表明,所提方法的均方根误差(Root Mean Squared Error,RMSE)和平均绝对误差(Mean Absolute Error,MAE)明显优于传统标准RNN方法。

关键词：循环神经网络(RNN) 层归一化交通流量数据分析

基于空间决策模型的耕-果错位空间分析与协调布局优化

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农业工程学报 2024年第6期40卷 330-338,F0003页

作者：张运平林建平黄艺敏袁浩冯桂贤张佩怡赣南师范大学地理与环境工程学院赣州341000 江西省城市固废低碳循环技术重点实验室赣州341000

当前农业生产“空间错位、功能错乱”问题严重,优化耕地果园布局,实现耕地下山果树上山,对改善耕地质量、优化耕地空间布局具有重要意义。该研究以林果业为主导农业的江西省赣州市寻乌县为例,在耕-果空间错位矛盾下,以耕地质量评价为基... 详细信息

当前农业生产“空间错位、功能错乱”问题严重,优化耕地果园布局,实现耕地下山果树上山,对改善耕地质量、优化耕地空间布局具有重要意义。该研究以林果业为主导农业的江西省赣州市寻乌县为例,在耕-果空间错位矛盾下,以耕地质量评价为基础,耦合地形空间与地理学定义划定“山上山下”以识别耕-果错位空间,在矛盾优化原则下应用GIS技术构建空间决策模型协调优化果园与耕地的空间布局。研究表明:1)寻乌县耕地细碎,质量评价结果为Ⅰ级的耕地面积为2227.02 hm^(2),占总耕地面积的24.17%;Ⅴ级面积为671.70 hm^(2),占7.29%;地形空间划分的“山下”空间占24.06%,“山上”空间占48.19%。2)以“山上山下”为分区标准,在耕地适宜性评价结果下初划耕地空间为保护区与拟调区,初划林果空间为宜耕区、宜果区与保留区,拟调区与宜耕区为耕-果发生错位的空间,耕地错位面积1221.77 hm^(2),果园错位面积5169.39 hm^(2)。3)按矛盾协调原则在空间决策模型下优化耕-果错位空间,最终结果为1247.25 hm^(2)的“山下”果园调为耕地,1221.77 hm^(2)的“山上”耕地调整为果园。研究结果优化了耕-果空间布局,提高了耕地质量,可为当前“山上”换“山下”优化耕地布局工作提供参考与理论依据。

关键词：土地利用耕地林果化空间错位空间决策布局优化

Functional annotation from the genome sequence of the giant panda

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Protein & Cell 2012年第8期3卷 602-608页

作者： Tong Huo Yinjie Zhang jianping lin College of Life Sciences Nankai UniversityTianjin 300071China College of Pharmacy Nankai UniversityTianjin 300071China State Key Laboratory of Medicinal Chemical Biology Nankai UniversityTianjin 300071China

The giant panda is one of the most critically endangered species due to the fragmentation and loss of its *** the functions of proteins in this animal,especially specific trait-related proteins,is therefore necessary to protect the *** this work,the functions of these proteins were investigated using the genome sequence of the giant *** on 21,001 proteins and their functions were stored in the Giant Panda Protein Database,in which the proteins were divided into two groups:20,179 proteins whose functions can be predicted by GeneScan formed the known-function group,whereas 822 proteins whose functions cannot be predicted by GeneScan comprised the unknown-function *** the known-function group,we further classified the proteins by molecular function,biological process,cellular component,and tissue *** the unknown-function group,we developed a strategy in which the proteins were filtered by cross-Blast to identify panda-specific proteins under the assumption that proteins related to the panda-specific traits in the unknown-function group *** this filtering procedure,we identified 32 proteins(2 of which are membrane proteins)specific to the giant panda genome as compared against the dog and horse *** on their amino acid sequences,these 32 proteins were further analyzed by functional classification using SVM-Prot,motif prediction using MyHits,and interacting protein prediction using the Database of Interacting *** proteins were predicted to be zinc-binding proteins,thus affecting the activities of nucleic *** 32 panda-specific proteins will be further investigated by structural and functional analysis.

关键词： Giant panda GPPD cross-Blast

耦合耕地综合质量和空间连通性的基本农田划定研究

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农业机械学报 2024年第7期55卷 221-231,251页

作者：林建平黄坤邓爱珍张运平袁浩冯桂贤张佩怡支超赣南师范大学地理与环境工程学院赣州341000 江西应用技术职业学院赣州341000

保护集中连片的优质耕地对于保障国家粮食安全具有重要意义。本文以江西省兴国县为例,从耕地的自然质量、立地条件、生态条件3个层面系统构建耕地综合质量评价指标体系;基于TOPSIS(Technique for order preference by similarity to an ... 详细信息

保护集中连片的优质耕地对于保障国家粮食安全具有重要意义。本文以江西省兴国县为例,从耕地的自然质量、立地条件、生态条件3个层面系统构建耕地综合质量评价指标体系;基于TOPSIS(Technique for order preference by similarity to an ideal solution)综合评价法对耕地综合质量进行评价,引入耕地连片度、耕地空间连通格局分析了耕地空间集聚特征,综合耕地质量及其连通特征划定永久基本农田。结果表明:从耕地综合质量来看,兴国县耕地质量由高到低划分为4个质量等级,面积分别为6 204.95、16 031.72、19 321.79、3 573.76 hm^(2),占总耕地面积的13.75%、35.52%、42.81%、7.92%。总体来看,兴国县中等质量耕地居多,占比为78.33%。从耕地连通性来看,兴国县耕地连片程度由高到低划分为5个等级,其中一级~五级连片耕地面积分别为24 731.44、6 199.73、3 131.54、7 397.71、3 671.80 hm^(2),分别占耕地总面积的54.80%、13.73%、6.94%、16.39%、8.14%,耕地存在不同程度破碎化。将耕地质量三等以上、连片程度四级以上耕地划入基本农田,面积为37 029.62 hm^(2),占耕地总面积的82.05%,与原有划定基本农田相比,实现了划定后永久基本农田“总体稳定、布局优化、质量有提升”的目标。

关键词：永久基本农田熵权TOPSIS模型耕地综合质量空间连通性

Necking of Q&P Steel during Uniaxial Tensile Test with the Aid of DIC Technique

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Chinese Journal of Mechanical Engineering 2013年第3期26卷 448-453页

作者： DING Lei lin jianping MIN Junying PANG Zheng YE You School of Mechanical Engineering Tongji University Body & Exterior Department Pan Asia Technical Automotive Center

A lot of research has been focused on the necking process during the plastic deformation of sheet metals, but the localized necking is rarely distinguished form diffused necking by experiments, due to the limit of measurement equipment and method. Quenching and Partitioning (Q&P) steel is a 3rd generation advanced high strength steel (AHSS). Its good combination of high strength and ductility ensures potential application in automobile industry. Uniaxial tensile tests of QP980 steel sheet at five strain rates are performed to investigate the necking process and the effect of strain rate on necking behavior of Q&P steel. Digital image correlation (DIC) method is applied during tensile tests, and evolutions of major strain, minor strain and normal strain distributions along gauge section of the tensile specimens are obtained. The diffused and localized necking strains are determined according to SWIFT necking theory and HILL necking theory respectively. The test results indicate that with the increasing of strain rate in the investigated range, the diffused necking strain decreases from 0.152 to 0.120 and localized necking strain decreases from 0.245 to 0.137. Meanwhile, the difference of the two strains decreases form 0.096 to 0.017. Thus it can be concluded that strain rate has an influence on both necking strains during the deformation of QP980 steel sheet. Diffused and localized necking strains are determined by uniaxial tensile tests with the aid of DIC technique and the effect of strain rate on necking strains is evaluated.

关键词： Q&P steel strain rate DIC SWIFT necking theory HILL necking theory

Directional solidification of Ti-45Al-8Nb-(W,B,Y) alloy

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Rare Metals 2010年第3期29卷 292-297页

作者： DING Xianfei lin Junpin HE jianping YE Feng CHEN Guoliang State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China

Using a Bridgman vertical vacuum furnace,Ti-45Al-8Nb-（W,B,Y）（at.%） bars,which were prepared from a plasma arc melting （PAM） ingot,were directionally solidified at growth rates of 10,15,and 20 μm/*** twinned （PST） crystal with an aligned lamellar microstructure was obtained at the growth rate of 15 μm/s because of high Nb *** principle of PST crystal growth and the effect of Nb element were *** results of investigations on microstructure and micromechanical properties of the directionally solidified （DS） bars of Ti-45Al-8Nb-（W,B,Y） alloy are briefly summarized.

关键词： directional solidification TiA1 alloys larnellar microstructure crystal growth