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Existence of Solutions to Path-Dependent Kinetic Equations and Related Forward-Backward Systems
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作者 Vassili Kolokoltsov Wei Yang 《Open Journal of Optimization》 2013年第2期39-44,共6页
This paper is devoted to path-dependent kinetics equations arising, in particular, from the analysis of the coupled backward-forward systems of equations of mean field games. We present local well-posedness, global ex... This paper is devoted to path-dependent kinetics equations arising, in particular, from the analysis of the coupled backward-forward systems of equations of mean field games. We present local well-posedness, global existence and some regularity results for these equations. 展开更多
关键词 Kinetic Equation Mean Field Control Global existence path Dependence Nonlinear MARKOV Process Coupled Backward-Forward SYSTEMS
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Construction of Legal System of China's Farmland Protection under the Coexistence of Multiple Objectives:Historical Logic,Practical Problems and Optimization Paths
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作者 Shengnan MA Jiaxin ZHOU Yongfang YANG 《Asian Agricultural Research》 2023年第2期26-34,38,共10页
[Objectives]To explore the evolution of the legal system of farmland protection and explore the rules and characteristics of policy development based on the theory and logic of institutional change since China's r... [Objectives]To explore the evolution of the legal system of farmland protection and explore the rules and characteristics of policy development based on the theory and logic of institutional change since China's reform and opening up,reveal the problems and deep-seated reasons of its legislation,clarify the direction of farmland protection in the new period,and solve the"non-agricultural""non-grain"and ecological problems of farmland.[Methods]Literature analysis and inductive deduction methods were used.[Results]The evolution of the farmland protection legal system has gone through the process of"national consciousness-policy guidelines-institutional system",the change from"single subject to multiple subjects";change from the use of"one-way administrative means to coordinated use of administrative,economic and technical means".The practical problems of the farmland protection legal system are mainly due to the insufficient systematization of the farmland protection legal system itself,the generalization of quantity protection,the transformation of quality protection,and the absence of ecological protection.[Conclusions]It is recommended to improve the existing farmland protection legal system from the establishment of the Farmland Protection Law,the improvement of the farmland protection public participation mechanism and supervision mechanism,the establishment of the farmland quality construction and improvement system,the differentiated farmland occupation and supplementation balance system,and the ecological restoration system. 展开更多
关键词 Farmland protection Legal system construction Policy evolution existing problems Optimization path
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The path and countermeasures of increasing government’s governance capacities in energy-saving renovation of existing buildings
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作者 GUO Han-ding WANG Feng-hui +1 位作者 WU Hong-min ZHANG Yin-xian 《Ecological Economy》 2021年第1期48-59,共12页
The dual functions of government participation and governance in the development of the existing building energy-saving renovation market determine the importance of the government’s scientific and effective actions.... The dual functions of government participation and governance in the development of the existing building energy-saving renovation market determine the importance of the government’s scientific and effective actions.Continuously improving the government’s role is to promote the effective operation of the existing building energy-saving renovation market.Based on the inherent requirements of improving the government governance capacity in the development of the existing building energy-saving renovation market,this paper constructs the implementation path for the development of the existing building’s energy-saving renovation market from the three dimensions of practical concept,practical process and practical methods.From the four aspects of improving the legal and regulatory system,building a market information sharing platform,establishing a sound market supervision mechanism,and consolidating and improving the market accountability system,we will structure the existing building energysaving renovation market development to improve the government’s ability to restrain and implement measures.From the four levels of improving the market incentive mechanism,optimizing the market financing environment,clarifying the position of market resource allocation,and building a social operation platform,design measures to improve government incentives in the development of the existing building energy conservation renovation market.From the shaping of governance yuan organizational roles,governance capacity and responsibilities of departments at all levels to define boundaries,to build four main interactive platform governance perspective,the main parties demand balance the interests of both the governance capacity development planning in the government market,building energy-saving market to enhance the implementation of countermeasures.In order to promote the healthy and sustainable development of the existing building energy-saving renovation market based on the enhancement of government governance capacity. 展开更多
关键词 energy-saving renovation of existing buildings market development government’s governance capacity path selection implementation countermeasures
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Preliminary research on the transmission path of nssSO_4^(2-) and NO_3^- in Antarctic ice sheet 被引量:1
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作者 张明军 李忠勤 +4 位作者 秦大河 效存德 杨惠安 康建成 李军 《Chinese Journal of Polar Science》 2001年第1期48-52,共5页
The main sources of nssSO 2- 4 and NO - 3 were summarized in this paper. By analyzing the spatial distribution features of major ions in Antarctic ice sheet and studying on the different time of the same volca... The main sources of nssSO 2- 4 and NO - 3 were summarized in this paper. By analyzing the spatial distribution features of major ions in Antarctic ice sheet and studying on the different time of the same volcanic event recorded by different ice cores from different regions in Antarctica, this paper intends to study the transmission path of nssSO 2- 4 and NO - 3. Results show that nssSO 2- 4 and NO - 3 are transmitted to the ice sheet through long distance and high altitude. The procedure of the transmission is that nssSO 2- 4 and NO - 3 are transmitted to the level between the top of troposphere and the bottom of stratosphere, then subsided to the ice sheet surface and spread to other regions. 展开更多
关键词 Antarctic ice sheet nssSO 2- 4 NO - 3 transmission path.
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GLOBAL EXISTENCE FOR A SEMILINEAR DIFFERENTIAL SYSTEM
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作者 LI SHUANHU 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 1995年第4期387-398,共12页
In this paper, a semilinear elliptic-parabolic PDE system which arises in a two dimensional groundwater flow problem is studied. Existence and uniqueness results are established via the L ̄p - L ̄q a priori estimates ... In this paper, a semilinear elliptic-parabolic PDE system which arises in a two dimensional groundwater flow problem is studied. Existence and uniqueness results are established via the L ̄p - L ̄q a priori estimates and the inverse function theorem. 展开更多
关键词 L ̄p - L ̄q estimates UNIQUENESS existence.
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Efficiency evaluation and optimizing implementation strategy of green renovation market in existing residential areas in China
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作者 GUO Han-ding YANG Fan +1 位作者 QIN Guang-lei ZHANG Yin-xian 《Ecological Economy》 2024年第4期333-349,共17页
The key to the healthy development of the market for green renovation of existing settlements lies in effectively playing the role of market resource allocation,and scientific evaluation of the current market operatio... The key to the healthy development of the market for green renovation of existing settlements lies in effectively playing the role of market resource allocation,and scientific evaluation of the current market operation efficiency is a prerequisite for the optimization and adjustment of market operation.Based on the perspective of market operation effectiveness,we start from the connotation and significance of the evaluation of the operation efficiency of the market of green renovation of existing settlements,construct the evaluation index system of the operation efficiency of the market of green renovation of existing settlements,use the hierarchical analysis method(AHP)and fuzzy comprehensive evaluation method(Fuzzy),establish the fuzzy comprehensive evaluation model,and finally,based on the operation process reengineering,financing model innovation,service platform expansion and market environment improvement,it structures the operation improvement path of the green renovation market of existing settlements and promotes the orderly operation of the green renovation market of existing settlements. 展开更多
关键词 existing residential areas green renovation market operation efficiency evaluation upgrading paths
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Being, 是, 存有, 存在-- 对 “一‘ 是’ 到底”的诠释、翻译策略的批评 被引量:2
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作者 陈波 《广东社会科学》 CSSCI 北大核心 2011年第5期88-98,共11页
"being"是由"Sis"(如Godis)这样的句式衍变而来,是系词"tobe"的现在分词形式或动名词形式,它的最基本、最核心的涵义就是"有"、"存有"(there-is)或"存在"(existence),由... "being"是由"Sis"(如Godis)这样的句式衍变而来,是系词"tobe"的现在分词形式或动名词形式,它的最基本、最核心的涵义就是"有"、"存有"(there-is)或"存在"(existence),由此派生出西方哲学史上关于"being"或"existence"是不是一个命题的逻辑谓词的长期论战。如果让"existence"(存在)不带时空含义、不具"现实性"意涵,则"存有"就是"存在","being"即"existence"。相反,如果让"existence"(存在)带上时空含义、具有"现实性"意涵,则"存有"不等于"存在","being"不等于"existence"。此外,"being"还与"实体"(sub-stance)、"本质"(essence)和"真理"(truth)有密切关联。"存有"、"实体"和"本质"都是把一个事物的一切具体特性P、Q、R、T等等抽象掉之后所留存下来的载体或基质,是决定一个事物之所是(what it is)或自身同一性的东西,是作为"存有物之存有"(beings qua being)。因此,国内哲学界先前把"being"译为"存在"或"存有"是有根据的,并无大错。"从古至今,一‘是’到底"的理解、诠释、翻译西方哲学的路径或策略,在理论上没有充分的根据,在汉语哲学实践中也行不通,因为它会造成许多完全无法理解的汉语句子,如把"是是是,不是不是"作为对"Being is being,not non-being"的汉译。 展开更多
关键词 BEING 存有 ( there - is) 存在 ( existence)
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Design Change Model for Effective Scheduling Change Propagation Paths 被引量:2
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作者 Hai-Zhu Zhang Guo-Fu Ding +2 位作者 Rong Li Sheng-Feng Qin Kai-Yin Yan 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2017年第5期1081-1090,共10页
Changes in requirements may result in the increasing of product development project cost and lead time, therefore, it is important to understand how require- ment changes propagate in the design of complex product sys... Changes in requirements may result in the increasing of product development project cost and lead time, therefore, it is important to understand how require- ment changes propagate in the design of complex product systems and be able to select best options to guide design. Currently, a most approach for design change is lack of take the multi-disciplinary coupling relationships and the number of parameters into account integrally. A new design change model is presented to systematically analyze and search change propagation paths. Firstly, a PDS-Be- havior-Structure-based design change model is established to describe requirement changes causing the design change propagation in behavior and structure domains. Secondly, a multi-disciplinary oriented behavior matrix is utilized to support change propagation analysis of complex product systems, and the interaction relationships of the matrix elements are used to obtain an initial set of change paths. Finally, a rough set-based propagation space reducing tool is developed to assist in narrowing change propagation paths by computing the importance of the design change parameters. The proposed new design change model and its associated tools have been demonstrated by the scheduling change propagation paths of high speed train's bogie to show its feasibility and effectiveness. This model is not only supportive to response quickly to diversified market requirements, but also helpful to satisfy customer require- ments and reduce product development lead time. The proposed new design change model can be applied in a wide range of engineering systems design with improved efficiency. 展开更多
关键词 Complex product systems Design changemodel - Propagation path analysis Propagation spacereduction Rough set
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Benefit evaluation on ESCO driving force for market development of energy-saving building 被引量:1
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作者 LIU Qian GUO Han-ding +1 位作者 LI Bai-tong ZHANG Yin-xian 《Ecological Economy》 2021年第2期117-125,共9页
ESCO is the internal driving force for the development of the existing building energy-saving renovation market,and the driving effect of the ESCO market depends on scientific and effective comprehensive benefit evalu... ESCO is the internal driving force for the development of the existing building energy-saving renovation market,and the driving effect of the ESCO market depends on scientific and effective comprehensive benefit evaluation.Based on analysis of the status qua at home and abroad,this paper reveals the necessity and value of research existing Building Energy Saving ESCO market development driving force effectiveness evaluation.The purpose of ESCO driving force benefit evaluation-oriented,establish the basic principles of evaluation index system of choice.Through the analysis of the evaluation content of the three dimensions of economic benefit,environmental benefit and social benefit,the comprehensive evaluation index system of the target level,criterion level and index level of the benefit evaluation of the existing building energy-saving renovation market development is constructed.AHP and fuzzy comprehensive evaluation of the combination,construct quantitative models of energy-saving drive ESCO market development role in the evaluation of the effectiveness of existing buildings.Based on the quantitative evaluation process of ESCO’s role in the development of our country’s existing building energysaving renovation market,it is necessary to scientifically understand the current status of ESCO’s driving role,and reveal the path to improve the efficiency of ESCO-driven development of the existing building’s energy-saving renovation market,in order to enhance the internal driving force of ESCO to promote.The existing building energy-saving renovation market is developing in a healthy and orderly manner. 展开更多
关键词 energy-saving renovation of existing buildings market development ESCO drive the benefit evaluation index fuzzy comprehensive evaluation improvement path
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自然的重置与控制的消解--从中西比较视域看中国式现代化的生态观变革 被引量:4
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作者 代砚春 《云南社会科学》 CSSCI 北大核心 2023年第5期10-18,共9页
从中西比较的视域看,西方现代化进程开启于对自然的误置,自然被剥离了神圣性和内在完满性成为理性之人的控制之物,而后它被置入资本逻辑的社会架构中成为资本增殖的附属。“控制自然”成为整个西方现代化的基本规划和理论支撑,其结果导... 从中西比较的视域看,西方现代化进程开启于对自然的误置,自然被剥离了神圣性和内在完满性成为理性之人的控制之物,而后它被置入资本逻辑的社会架构中成为资本增殖的附属。“控制自然”成为整个西方现代化的基本规划和理论支撑,其结果导致了人与自然关系的断裂,引发了生态危机。中国式现代化追求“人与自然和谐共生”,它实现了对自然的时代性、历史性重置,要求“尊重自然、顺应自然、保护自然”。它主张在中国式现代化的实践中消解“控制自然”的现代化发展定位,实现人与自然的社会的历史的统一。“人与自然和谐共生的现代化”的生态观变革为世界现代化建设塑造了一种从技术理性到生态理性的思维方式,提供了一种中国式的顺序性的价值关切。它以生态观念的理论创新推动了人类文明形态的变革,打开了人类走向生态未来的广阔空间。 展开更多
关键词 西方现代化 中国式现代化 人与自然和谐共生 人类文明新形态
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既有城市工业园区民用化绿色低碳改造技术路径的思考与实践--以深圳龙华区宇丰工业园改造工程为例 被引量:2
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作者 郭永聪 叶青 +1 位作者 俞杰鹏 魏新奇 《当代建筑》 2022年第2期28-32,共5页
基于对工业园区民用化绿色低碳改造两个转变的认识——从服务于生产到服务于人,从服务于自身到服务于城市长远发展,本文提出绿色低碳改造的多元目标,并认为后继主导功能是其关键影响因素,进而从提高前期决策合理性和保障后期技术措施落... 基于对工业园区民用化绿色低碳改造两个转变的认识——从服务于生产到服务于人,从服务于自身到服务于城市长远发展,本文提出绿色低碳改造的多元目标,并认为后继主导功能是其关键影响因素,进而从提高前期决策合理性和保障后期技术措施落地性角度提出了诊断策划、设计实施、运维评估的全过程技术路径和策略。通过对多元目标确定、技术路径和技术策略进行应用,实践案例取得良好效果。 展开更多
关键词 既有城市工业园区 绿色低碳改造 多元目标 技术路径
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Comparison between Google Earth KML Data and RTK Data on a Flight Planning Simulated to the Unmanned Aerial Vehicle Microdrone MD4-1000
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作者 Antoninho Joao Pegoraro Marcelo Costa Napoleao Jurgen Wilhelm Philips 《Journal of Earth Science and Engineering》 2012年第10期613-616,共4页
The UAVs (unmanned aerial vehicles) and the use of graphical data files of extension KML (keyhole markup language) have become popular nowadays. The KML files are associated to the Google Earth applications. Devel... The UAVs (unmanned aerial vehicles) and the use of graphical data files of extension KML (keyhole markup language) have become popular nowadays. The KML files are associated to the Google Earth applications. Developed by Microdrone company for planning, overflight simulation and data flight analysis, the program mdCockpit was used in this experiment. The UAV Microdrone's flight path was programmed in two ways: using geo referenced images from Google Earth and entering points coordinates into the program. These points have had their geographical decimal coordinates collected by GPS (global positioning system) (RTK (real time kinematic)) method. The aim here is to describe a way of evaluating the difference between the alternatives of flight planning. A flight path, defined a route with 22 points, was also simulated in the program mdCockpit. The points were collected and saved, while the images captured by the program went automatically forming a georeferenced mosaic. A comparison between the differences of coordinates to each point was made by choosing on the images and also by a RTK positioning. The result was up to 14.20 m to a 100 m flight height. There is a significant change of position and this can result in unwanted over flights in locations or even jeopardizing the safety of air activity. 展开更多
关键词 Simulation of flight path MD4-1000 KML data RTK data.
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教育学类本科专业教材的“顽疾”“病理”与“医治”
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作者 张斌贤 《大学教育科学》 CSSCI 北大核心 2024年第6期32-38,共7页
近四十多年教育学类本科专业教材建设在取得多方面显著成绩的同时,仍存在诸多亟待解决的重要问题,主要体现在:教材的知识性有余而学术性不足,教材仅介绍单方面知识而忽视不同观点的呈现,教材编写注重提供结论而轻视论证,教材编写缺乏专... 近四十多年教育学类本科专业教材建设在取得多方面显著成绩的同时,仍存在诸多亟待解决的重要问题,主要体现在:教材的知识性有余而学术性不足,教材仅介绍单方面知识而忽视不同观点的呈现,教材编写注重提供结论而轻视论证,教材编写缺乏专业性等。造成上述问题的原因在于教育学在中国发展的特殊经历造成的教材编写经验的不足和积淀的匮乏、重知识传授而轻能力发展的传统教育观念的束缚以及重科研而轻教学、重著作而轻教材的弊端。解决上述问题,须着力于更新本科教育的观念,深刻认识教材编写和建设在教育学科建设和人才培养中的关键作用,不断提高教材编写的专业化水平,在教材编写中充分反映知识的生成过程和学术研究的最新进展。 展开更多
关键词 教育学类本科专业 教材编写 存在问题 问题成因 改革路径
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“四个自信”引领下大学英语专业课程思政建设路径探究
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作者 张颖 《湖北开放职业学院学报》 2024年第21期81-83,共3页
经济全球化发展和现代教育改革,对大学英语专业人才培养工作提出了新要求。高度重视大学英语专业课程思政建设,可以让学生在学习英语知识和发展综合能力的同时,坚定对中国特色社会主义的道路自信、理论自信、制度自信和文化自信,最终成... 经济全球化发展和现代教育改革,对大学英语专业人才培养工作提出了新要求。高度重视大学英语专业课程思政建设,可以让学生在学习英语知识和发展综合能力的同时,坚定对中国特色社会主义的道路自信、理论自信、制度自信和文化自信,最终成长为德才兼备的优秀人才,为增强我国核心竞争力和实现民族伟大复兴担当重要历史使命。本文联系“四个自信”和课程思政的基本概述,对“四个自信”引领下大学英语专业课程思政建设现存问题进行深入剖析,并从开展课程思政顶层设计、优化大学英语教学内容、拓宽课程思政育人路径、重视学生思政实践体验等方面入手,提出几点有效应对措施。 展开更多
关键词 “四个自信” 大学英语 课程思政 存在问题 建设路径
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南阳文学产业化发展创新路径探索
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作者 李倩 《南阳理工学院学报》 2024年第5期39-43,共5页
文章分析南阳文学产业化发展过程中的经验教训,结合南阳特有的人文环境和文坛生态环境,深入具体地探索南阳文学产业化发展的市场定位、内在依据、发展模式和产业链模式,并分析这些模式运行过程中所展现出来的矛盾和解决方式。在此基础上... 文章分析南阳文学产业化发展过程中的经验教训,结合南阳特有的人文环境和文坛生态环境,深入具体地探索南阳文学产业化发展的市场定位、内在依据、发展模式和产业链模式,并分析这些模式运行过程中所展现出来的矛盾和解决方式。在此基础上,结合发达地区的先进经验,创造出有我市特色的、适合我市实际情况的文学产业化发展战略,即打造“创作——传播——开发”的三级文学产业链,将具有悠久历史的南阳古代文学和现当代文学进行产业化运营,进而传播南阳本土文化,为建设文化强市、实现中原崛起作出贡献。 展开更多
关键词 南阳文学产业化 存在问题 解决路径 预期成效
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体育教学中默会知识的存在形式及习得路径
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作者 罗海平 全朝云 蒋建国 《当代体育科技》 2024年第2期69-72,共4页
默会知识广泛存在于体育教学之中,精准识别体育教学中的默会知识,是深化认知、创新教法、提升质量的重要基础。该文以维特根斯坦对强弱默会知识的分类研究为理论依据,从学科知识阻隔、运动感觉具身性、运动技能情境依赖3个方面,论述体... 默会知识广泛存在于体育教学之中,精准识别体育教学中的默会知识,是深化认知、创新教法、提升质量的重要基础。该文以维特根斯坦对强弱默会知识的分类研究为理论依据,从学科知识阻隔、运动感觉具身性、运动技能情境依赖3个方面,论述体育教学中默会知识的存在形式及形成机理。以此为基础,结合体育教学实践,提出:运用“家族相似”整合跨学科知识;建立单项一体化课程,保持教学内容的连贯性;创设情境教学,促进学生对背景类知识的理解与把握等默会知识的习得路径。 展开更多
关键词 体育教学 默会知识 存在形式 习得路径
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课程思政融入超声诊断学教学的探索与实践 被引量:1
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作者 岳梅 袁惠 +3 位作者 彭娟 牛锦东 李玉婷 陈熙 《中国继续医学教育》 2024年第3期169-172,共4页
立德树人的成效是检验学校一切工作的根本标准,课程思政是落实立德树人要求的关键一招。把课程思政要求融入超声诊断学教学中,有利于实现传道授业相融合,提高学生基本素质,促进一流学科建设,构建大思政教育格局。基于超声诊断学课程思... 立德树人的成效是检验学校一切工作的根本标准,课程思政是落实立德树人要求的关键一招。把课程思政要求融入超声诊断学教学中,有利于实现传道授业相融合,提高学生基本素质,促进一流学科建设,构建大思政教育格局。基于超声诊断学课程思政要求实施现状,可通过明确超声诊断学课程思政目标体系、构建超声诊断学准备+互动+巩固三步式教学模式、融合开展超声诊断学理论和实践教学、建立超声诊断学多元化考核评价体系、拓宽授课教师课程思政能力提升路径等系列措施,确保课程思政有机融入医学生培养过程中。 展开更多
关键词 立德树人 课程思政 超声诊断学 医学生 存在问题 实践路径
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我国已建集装箱码头零碳转型路径研究与实践 被引量:1
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作者 杜伟 王艳明 +1 位作者 田腾 李玲玲 《水道港口》 2024年第2期264-270,共7页
在碳达峰、碳中和目标下,对交通强国建设,尤其是港口绿色发展提出更高要求。针对已建集装箱码头零碳转型问题,在总结国内主要港口在零碳创建方面诸多尝试和探索的基础上,从能源结构、用能设备、能效管理、船舶降碳四个方面提出已建集装... 在碳达峰、碳中和目标下,对交通强国建设,尤其是港口绿色发展提出更高要求。针对已建集装箱码头零碳转型问题,在总结国内主要港口在零碳创建方面诸多尝试和探索的基础上,从能源结构、用能设备、能效管理、船舶降碳四个方面提出已建集装箱码头零碳转型的系统化实施路径,以天津港太平洋国际集装箱码头为例,分析其在零碳转型方面的做法与经验,为我国已建集装箱码头向零碳转型提供顶层设计和实际创建经验借鉴。研究提出已建集装箱码头零碳转型的发展方向。 展开更多
关键词 碳达峰 碳中和 已建集装箱码头 零碳转型 实施路径
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Formation of Hybrid Ring Structure of Cyanurate/Isocyanurate in the Reaction be-tween 2,4,6-Tris(4-Phenyl-Phenoxy)-1, 3,5-Triazine and Phenyl Glycidyl Ether
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作者 Daisuke Ohno Kazuya Zenyoji +2 位作者 Youji Kurihara Kazuyoshi Ueda Hitoshi Habuka 《International Journal of Organic Chemistry》 CAS 2016年第2期117-125,共9页
Reaction products of 2,4,6-tris(4-phenyl-phenoxy)-1,3,5-triazine derived from 4-phenylphenol cyanate ester and phenyl glycidyl ether were analyzed. In addition to an isocyanurate compound and an oxazolidone compound w... Reaction products of 2,4,6-tris(4-phenyl-phenoxy)-1,3,5-triazine derived from 4-phenylphenol cyanate ester and phenyl glycidyl ether were analyzed. In addition to an isocyanurate compound and an oxazolidone compound which were well known as reaction products of cyanate esters and epoxy resins, compounds with hybrid ring structure of cyanurate/isocyanurate were determined. Gibbs free energies of the compound having hybrid ring structure of cyanurate/isocyanurate with two isocyanurate moiety were found to be lower than that of the compound with cyanurate ring structure through calculations. Calculation data supported the existence of hybrid ring structure of cy-anurate/isocyanurate. It was revealed that isomerization from cyanurate to isocyanurate occurs via hybrid ring structure of cyanurate/isocyanurate in the reaction of aryl cyanurate and epoxy. 展开更多
关键词 Reaction products of 2 4 6-tris(4-phenyl-phenoxy)-1 3 5-triazine derived from 4-phenylphenol cya-nate ester and phenyl glycidyl ether were analyzed. In addition to an isocyanurate compound and an oxazolidone compound which were well known as reaction products of cyanate esters and epoxy resins compounds with hybrid ring structure of cyanurate/isocyanurate were determined. Gibbs free energies of the compound having hybrid ring structure of cyanurate/isocyanurate with two isocyanurate moiety were found to be lower than that of the compound with cyanurate ring struc-ture through calculations. Calculation data supported the existence of hybrid ring structure of cy-anurate/isocyanurate. It was revealed that isomerization from cyanurate to isocyanurate occurs via hybrid ring structure of cyanurate/isocyanurate in the reaction of aryl cyanurate and epoxy.
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卫生类高职院校“医学英语”课程思政建设——以江苏护理职业学院为例 被引量:1
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作者 李晨 朱婧 薛媛 《淮北职业技术学院学报》 2024年第1期68-71,共4页
把课程思政元素融入“医学英语”教学是当前教育形势的要求。“医学英语”课程思政建设过程中存在着课程思政元素零散、思政元素缺少真实情境、跨文化知识欠缺等问题,采取对标对岗、重构教学内容、系统整合思政元素、创设真实语境等实... 把课程思政元素融入“医学英语”教学是当前教育形势的要求。“医学英语”课程思政建设过程中存在着课程思政元素零散、思政元素缺少真实情境、跨文化知识欠缺等问题,采取对标对岗、重构教学内容、系统整合思政元素、创设真实语境等实践路径,以期将思政元素有效融入“医学英语”课程中,达到教书与育人的深度融合,实现立德树人。 展开更多
关键词 “医学英语” 课程思政 存在问题 培育路径
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