检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

情感共同体:家庭题材影片的叙事伦理指向

电影评介 2024年第14期 44-49页

作者：温立红广东技术师范大学文学与传媒学院

电影叙事方式不是封闭的系统,其嬗递变迁既是电影艺术传统变化的折射,也是时代生活和社会意识形态在电影创作中的曲折反映。本文借助叙事伦理批评的电影观,识别近年来家庭题材片叙事技巧与叙述意图之间的修辞关系;通过分析叙事时间、叙... 详细信息

电影叙事方式不是封闭的系统,其嬗递变迁既是电影艺术传统变化的折射,也是时代生活和社会意识形态在电影创作中的曲折反映。本文借助叙事伦理批评的电影观,识别近年来家庭题材片叙事技巧与叙述意图之间的修辞关系;通过分析叙事时间、叙事空间与影像修辞的运用,揭示情感共同体于叙事形式中的生成过程及其重要性;旨在探讨家庭题材影片中叙事伦理的构建方式及其对观众情感体验的影响,丰富叙事伦理研究成果,为理解家庭题材影片的社会文化意义提供新视角。

关键词：情感共同体家庭伦理叙事时间叙事空间叙事伦理

Formation of Foliations and their Related Minerals from Diagenetic to Medium-grade Metamorphic Rocks:A Case Study of the Hongyanjing and Liao-Ji Backarc Basins,China

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

Acta Geologica Sinica(English Edition) 2021年第4期95卷 1158-1170页

作者： TIAN Zhonghua wen Fei LIU Fulai zhu Haozhong YE Zhanghuang Key Laboratory of Deep-Earth Dynamics of the Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China Shandong Provincial Key Laboratory of Depositional Mineralization&Sedimentary Minerals Shandong University of Science and TechnologyQingdaoShandong 266590China Jiangxi Science&Technology Normal University Nanchang 330038China

Deciphering the relationship between polyphase tectonic foliations and their associated mineral assemblages is significant in understanding the process from diagenesis to low-/medium-/high-grade *** can provide information related to strain,metamorphic conditions and overprinting relationships and so help reveal the tectonic evolution of *** this study,we predominately focus on the formation of foliations and their related minerals,as developed in two separate *** of all,two stages of axial plane cleavages(S1 and S2)were recognized in the Hongyanjing inter-arc basin,the formation of the S1 axial plane cleavage is associated with mica rotation and elongation in mudstones in the local *** pencil structure of S2 formed during the refolding phase,the minerals in the sedimentary rocks not changing their shape and ***,in the Liao-Ji backarc basin,foliations include diagenetic foliation(bedding parallel foliation),tectonic S1 foliation(secondary foliation or axial plane cleavage of S0 folding)and crenulation cleavage(S2).The formation mechanism of foliation changes from mineral rotation or elongation and mineral solution transfer in S1 to crystal-plastic deformation,dynamic recrystallization and micro-folding in *** index metamorphic minerals formed from low-grade to medium-grade consist of biotites,garnets,staurolite and kyanite,constituting a typical Barrovian metamorphic ***,a new classification of foliation is presented in this *** foliations can be divided into continuous and disjunctive foliations,based on the existence of microlithons,detectable with the aid of a *** foliation can be further sub-divided into spaced foliation and crenulation cleavage,according to whether(or not)crenulation(micro-folding)is *** size of the mineral grains is also significant for classification of the foliations.

关键词： new classification of foliations mineral transformation orogenesis Hongyanjing basin Liao-Ji backarc basin

在线全文

学校读者我要写书评

暂无评论

压载水管理系统关键技术分析

船海工程 2024年第S1期53卷 22-26页

作者：温家晗中国船级社秦皇岛分社河北秦皇岛066000

通过解读压载水公约,介绍压载水公约的实施要点,对压载水管理系统实践中的要求及注意事项进行归纳总结。通过对比分析压载水处理技术,介绍技术优劣性,对目前市场上4种主流的压载水管理系统分析其关键技术要点,并结合实践中遇到的问题提... 详细信息

通过解读压载水公约,介绍压载水公约的实施要点,对压载水管理系统实践中的要求及注意事项进行归纳总结。通过对比分析压载水处理技术,介绍技术优劣性,对目前市场上4种主流的压载水管理系统分析其关键技术要点,并结合实践中遇到的问题提出建议。

关键词：压载水公约压载水管理系统(BWMS) 压载水处理技术

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

螺旋波纹波导回旋行波放大器的研究

真空电子技术 2024年第4期 15-19页

作者：高俊强李波高福舒国响尹华碧何文龙深圳大学射频异质异构集成国家重点实验室广东深圳518060 深圳大学电子与信息工程学院广东深圳518060 深圳大学微电子研究院广东深圳518060

介绍了一种工作频率范围在200~220 GHz,输出功率为7 kW的回旋管行波放大器。70 keV、1.5 A、大回旋电子束的回旋模式的三次谐波与五折螺纹波导互作用区域中传播的类TE 31模式发生共振相互作用,实现宽带放大。大回旋电子束由一个磁会切(C... 详细信息

介绍了一种工作频率范围在200~220 GHz,输出功率为7 kW的回旋管行波放大器。70 keV、1.5 A、大回旋电子束的回旋模式的三次谐波与五折螺纹波导互作用区域中传播的类TE 31模式发生共振相互作用,实现宽带放大。大回旋电子束由一个磁会切(CUSP)电子枪所产生,所设计的类TE 31模式具有理想的色散特性,其色散特性通过理论预测,计算机模拟和实验相结合来设计优化。三维粒子仿真(CST PIC)模拟得到了输出功率和增益分别为约7 kW和51.5 dB,输入信号功率为50 mW,3 dB瞬时增益带宽约为20 GHz。

关键词：太赫兹放大器回旋行波放大器螺纹波导互作用区域色散特性

在线全文

学校读者我要写书评

暂无评论

浅谈工程测量中的三维GIS技术要点

价值工程 2024年第29期43卷 152-154页

作者：朱海莉姚伟凯朱文利卢波北京地矿工程建设有限责任公司北京100016 北京科远广宇勘测技术有限责任公司北京100072 北京潞图地信科技发展有限公司北京101399

随着科技的飞速发展,工程测量领域对数据的准确性和可视化要求日益提高。传统的二维GIS在表达复杂地形和建筑物立体结构时存在明显局限,难以满足现代工程测量的需求,因此在信息技术的加持下三维GIS技术应运而生,它利用三维坐标系统来模... 详细信息

随着科技的飞速发展,工程测量领域对数据的准确性和可视化要求日益提高。传统的二维GIS在表达复杂地形和建筑物立体结构时存在明显局限,难以满足现代工程测量的需求,因此在信息技术的加持下三维GIS技术应运而生,它利用三维坐标系统来模拟现实世界,使得地理信息的展示更加直观、立体,为工程测量提供了全新的解决方案。基于此,本文立足于三维GIS技术,对其在工程测量中运用的重要性进行阐述,并提出其在工程测量中的实际运用要点,旨在为之后相关人员的研究提供参考。

关键词：工程建设测量技术三维GIS技术

Revelation of bimolecular tautomerization induced by the concerted and radical interactions in lignin pyrolysis

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

能源化学:英文版 2023年第9期84卷 1-10页

作者： wen-luan Xie Bin Hu wen-ming Zhang he-long Li Guo-yong Song Ji Liu Qiang Lu National Engineering Research Center of New Energy Power Generation North China Electric Power UniversityBeijing 102206China Beijing Key Laboratory of Lignocellulosic Chemistry Beijing Forestry UniversityBeijing 100083China Suzhou Institute of North China Electric Power University Suzhou 215123JiangsuChina

Bimolecular interactions play crucial roles in lignin *** tautomerization of key intermediates has a significant impact on the formation of stable products,whereas bimolecular tautomerization has been rarely *** the present work,the bimolecular tautomerization mechanism induced by both concerted and radical interactions was proposed and carefully confirmed.A characteristicβ-O-4 lignin dimer,2-phenoxy-1-phenylethanol(α-OH-PPE),was used as the model compound to reveal two representative keto-phenol and enol-keto tautomerism mechanisms,based on theoretical calculations combined with pyrolysis *** results indicate that the unimolecular tautomerism as the rate-determining step limits product generation,due to fairly high energy *** the free hydroxy compounds and radicals derived from initial pyrolysis can further initiate bimolecular tautomerism reactions through the one-step concerted hydroxyl-assisted hydrogen transfer(hydroxylAHT)and two-step radical hydrogen abstraction interactions,*** alleviating and even avoiding the large ring tension of tautomerism,the unstable tautomers(2,4-cyclohexadienone and1-hydroxy styrene)can be rapidly tautomerized into stable phenol and acetophenone with the help of intermolecular *** from the significant advantage of retro-ene fragmentation in breaking theβ-O-4 bond to form tautomers,a large amount of stable phenolic and ketone products can be generated following bimolecular tautomerization in the pyrolysis ofβ-O-4 linked lignin.

关键词： Lignin pyrolysis Interaction mechanism Tautomerism Hydroxyl-assisted hydrogen transfer Radical chain reaction

基于法布里-珀罗干涉仪测量大气环境CO_(2)的方法

在线全文

学校读者我要写书评

暂无评论

物理学报 2024年第2期73卷 120-126页

作者：王松周闯李素文牟福生淮北师范大学污染物敏感材料与环境修复安徽省重点实验室淮北235000

CO_(2)是主要的温室气体之一,它的排放和累积导致温室效应加强,进而引起全球气候变化,因此获取大气环境中CO_(2)的浓度变化对研究气候变化意义重大.针对低成本、快速和在线精确测量大气环境CO_(2)的技术需求,本文构建了基于法布里-珀罗... 详细信息

CO_(2)是主要的温室气体之一,它的排放和累积导致温室效应加强,进而引起全球气候变化,因此获取大气环境中CO_(2)的浓度变化对研究气候变化意义重大.针对低成本、快速和在线精确测量大气环境CO_(2)的技术需求,本文构建了基于法布里-珀罗干涉仪的CO_(2)大气浓度在线测量系统,并研究了精确获取其浓度反演方法.采用基于微机电系统(MEMS)技术的热辐射源作为法布里-珀罗干涉仪系统光源,设计透射式光路代替常见的折射式光路.通过静电控制两镜片的间距,改变干涉谱,实现10 nm步长的中心波长的干涉峰调节,扫描获得CO_(2)实时在线吸收光谱,基于差分吸收光谱原理获取了CO_(2)气体的浓度.利用样气标定系统,并用商用光声光谱多气体分析仪校验系统,结果表明,该系统检测限达1.09×10^(-6),检测精度为±1.13×10^(-6),测量误差小于1%.在煤城淮北开展了大气环境CO_(2)实时在线检测,并与商用光声光谱分析仪开展比对观测实验,二者相关系数R=0.92.实验结果表明,研发的法布里-珀罗干涉仪系统能够满足大气环境CO_(2)浓度的快速、在线高精度测量技术需求.

关键词：二氧化碳法布里-珀罗干涉仪热辐射源光声光谱多气体分析仪

感知建成环境对步行幸福感的影响——以哈尔滨市三类街区为例

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

China City Planning Review 2024年第2期33卷 65-76页

作者：董慰刘岩董禹 Wu wen Chen Ying Liu Jiayan School of Architecture and Design Harbin Institute of Technology Key Laboratory of National Territory Spatial Planning and Ecological Restoration in Cold Regions Ministry of Natural ResourcesHarbinP.R.China. School of Architecture and Urban Planning Jilin Jianzhu University Architectural and Urban-Rural Design Energy Conservation Research Center Sub-Laboratory of Ministry of Education(MOE)Key Laboratory of Building Comprehensive Energy Conservation in Cold Region Research Center for Urban and Rural Innovation and Development Strategy of Ecological Wisdom Town at Jilin Province Changchun Northeastern University Jangho Architecture Key Laboratory of Urban and Building Digital Technology of Liaoning ProvinceShenyangP.R.China. the Architectural Design and Research Institute of HIT Co. Ltd.HarbinP.R.China. 不详

Pedestrian well-being reflects emotional experience during *** which built environment factors influence pedestrian wellbeing not only helps to improve residents’physical and mental health but also encourages more *** on the data obtained via a questionnaire survey in Harbin,China,a gradient boosting decision tree(GBDT)model is developed to analyze how the perception of the built environment influences pedestrian well-being and to explain the differences across types of neighborhoods(old,new,and mixed).The results show that pedestrian well-being is most influenced by the diversity of daily service facilities,followed by the number of commercial facilities along a street,the accessibility of daily service facilities,and green ***,pedestrian well-being is also influenced by the type of *** new neighborhoods,it is dominated by the accessibility of public transport stations,while in old and mixed neighborhoods,pedestrian well-being is primarily determined by the accessibility of green spaces and the number of green spaces,*** on the characteristics of the built environment,different intervention measures are proposed to improve pedestrian well-being and promote walking.

关键词： pedestrian well-being perceived built environment gradient boosting decision tree(GBDT) neighborhood subjective well-being

Design and comparison of hybrid multi-bend achromat lattices for HALF storage ring

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2023年第7期34卷 189-197页

作者： Peng-Hui Yang Gang-wen Liu Jian-Hao Xu Wei-Wei Li Tian-Long he Zheng-he Bai National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China

The hefei Advanced Light Facility(HALF)proposed by the National Synchrotron Radiation Laboratory is a green-field vacuum ultraviolet and soft X-ray diffraction-limited storage ring light source with a beam energy of 2.2 GeV and emittance goal of less than 100 pm *** by the ESRF-EBS hybrid multi-bend achromat(HMBA),SLS-2,and Diamond-II lattices,we have proposed and designed a modified H6BA lattice as the baseline lattice of the HALF storage ring with 20 identical cells and a natural emittance of approximately 86 pm *** this paper,three other types of HMBA lattices including two H7BA lattices and a H6BA lattice are designed for HALF with the same number of *** main storage ring proper-ties of these four HMBA lattices are *** the intra-beam scattering(IBS)effect is significant in the HALF storage ring,we calculate and compare the equilibrium emittances of the four lattices with IBS *** comparisons show that the present modified H6BA lattice,which has a relatively low equilibrium emittance and more straight sections,is preferred for the HALF storage ring after a comprehensive consideration.

关键词： hefei advanced light facility Lattice design Hybrid MBA lattice Intra-beam scattering