期刊文献+
任意字段
题名或关键词
题名
关键词
摘要
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息
共找到115篇文章
< 1 2 … 6 >
每页显示 20 50 100
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
显示方式：
Crebanine protects against ovariectomy-induced bone loss by targeting Sirt1 to interfere with NF-κB acetylation and ROS activity 认领 引用
1
作者 Haojie Zhang Xuan Zhao +11 位作者 Zheng Wang Jiansen Miao Xinli Hu Peng Cui Chen Jin Xibin Zhao Haibo Liang Hantao Ye Yining Xu Xiaolong Chen Wei Wang Shibao Lu 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2026年第3期865-882,共18页
Osteoporosis,the most prevalent skeletal disorder,is primarily driven by aberrantly increased osteoclast formation and/or activity.Targeting hyperactive osteoclasts remains the cornerstone of current therapeutic strat... Osteoporosis,the most prevalent skeletal disorder,is primarily driven by aberrantly increased osteoclast formation and/or activity.Targeting hyperactive osteoclasts remains the cornerstone of current therapeutic strategies.Crebanine(Cre),a natural isoquinoline-derived alkaloid with diverse pharmacological activities,has not yet been explored for osteoporosis treatment.This study aimed to evaluate the therapeutic potential of Cre against ovariectomy(OVX)-induced osteoporosis and elucidate its underlying mechanisms.Cre dose-dependently inhibited in vitro osteoclast differentiation,actin ring formation,and bone resorption by downregulating nuclear factor of activated T cells 1(NFATc1)and key osteoclast-related genes.Simultaneously,Cre enhanced osteoblast differentiation and mineralization,upregulated osteoblast marker genes,and restored hydrogen peroxide-impaired alkaline phosphatase(ALP)activity impaired by hydrogen peroxide,indicating dual regulation of bone remodeling.Mechanistically,Cre activated sirtuin 1(Sirt1),promoting p65 deacetylation,inactivated IκB kinase(IKK),and stabilized IκBα,thus inhibiting nuclear factor-kappaB(NF-κB)signaling.Additionally,Cre reduced reactive oxygen species(ROS)by upregulating antioxidant enzymes(heme oxygenase-1(HO-1),catalase)and suppressing nicotinamide adenine dinucleotide(NAD)phosphate(NADPH)oxidases(NOX1/4).Furthermore,Cre specifically bound to the predicted site of receptor activator of NF-κB(RANK),blocking RANK ligand(RANKL)-RANK interaction and disrupting downstream protein kinase B(Akt)and mitogen-activated protein kinase(MAPK)signaling pathways.In the OVX mouse model,Cre significantly attenuated bone loss and osteoclastogenesis.Crucially,Cre showed no toxicity in liver or kidney function tests.Collectively,these findings demonstrate that Cre exerts dual therapeutic effects,inhibiting osteoclastogenesis via Sirt1-mediated NF-κB/ROS suppression and promoting osteoblast activity,providing a promising therapeutic strategy for osteoporosis. 展开更多
关键词 Crebanine Osteoporosis Osteoclast Sirt1 Acetylation Reactive oxygen species
暂未订购 下载PDF
Classification,heterogeneity,and evolution of snow drought in Xinjiang under climate warming 认领 引用
2
作者 Hong ZHU Peng CUI +4 位作者 Yan WANG Jiansheng HAO Guoqing CHEN Changgui LIN Lanhai LI 《Science China Earth Sciences》 SCIE EI CSCD 2026年第7期2611-2624,共14页
Against the backdrop of global warming,snow drought events have occurred frequently in Xinjiang in recent decades,posing severe threats to agricultural and pastoral ecosystems.Based on ERA5 reanalysis data,the Long-te... Against the backdrop of global warming,snow drought events have occurred frequently in Xinjiang in recent decades,posing severe threats to agricultural and pastoral ecosystems.Based on ERA5 reanalysis data,the Long-term Series of Daily Snow Depth Dataset in China,and CMIP6 climate projections,this study systematically investigates the spatiotemporal heterogeneity and evolutionary characteristics of typical snow droughts in Xinjiang during 1980–2021.The results indicate that snow droughts in Xinjiang exhibit pronounced temporal clustering.Prior to 2000,dry-only snow droughts occurred more frequently,whereas since 2000,warm-dry snow droughts have increased markedly.Meanwhile,the frequency of warm-only snow droughts has relatively declined.Snow droughts also exhibit strong spatial heterogeneity.The Kunlun Mountains experience the highest frequency of snow droughts and are projected to experience higher snow drought risk in the future.In addition,this study identifies cold snow droughts driven primarily by snow sublimation,highlighting a distinct mechanism for snow drought formation in the high-altitude regions of Xinjiang.With continued warming,the risk of snow drought in Xinjiang is projected to intensify by 2100.Warm-dry snow droughts are expected to become more frequent,whereas dry-only snow droughts are projected to decrease.Overall,this study elucidates the formation processes and coupled thermal-hydrological mechanisms of different snow drought types,providing a scientific basis for snow drought prediction and mitigation in Xinjiang. 展开更多
关键词 Snow drought Spatiotemporal heterogeneity Formation mechanism Sublimation Xinjiang
暂未订购 下载PDF
Mutual-activation effect and hydrogen-bond reconfiguration enabling fast ion-transport and self-healing artificial SEI for ultra-stable zinc anodes 认领 引用
3
作者 Haozhong Shi Shaohuan Hong +9 位作者 Weijia Meng Feng Gong Zipu Zhao Peng Zhang Wenlong Cao Xiaobing Li Peng Cui Lei Gou Yue Ma Xiaoyong Fan 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第4期565-575,I0014,共11页
Artificial solid electrolyte interphase(SEI)represents a promising strategy for stabilizing Zn electrodes by suppressing dendrite formation and parasitic reactions.However,conventional SEI designs suffer from sluggish... Artificial solid electrolyte interphase(SEI)represents a promising strategy for stabilizing Zn electrodes by suppressing dendrite formation and parasitic reactions.However,conventional SEI designs suffer from sluggish Zn2+transport kinetics and mechanical instability during cycling.Herein,we construct a thin chitosan@alginate(CS@SA,~1.5μm)bilayer SEI on Zn electrodes via electrodeposition.Mutually activated functional groups(-COOH in outer SA and-NH2in inner CS)synergistically(1)facilitate the desolvation of[Zn(H2O)6]2+,(2)block reactive H2O contact with the Zn surface,and(3)establish polymer-chain-accelerated Zn2+transport pathways.Hydrogen-bond reconfiguration endows the CS@SA bilayer with in-situ self-healing and anti-detachment features,dynamically maintaining interfacial integrity.These merits simultaneously enhance the Zn electrode stability and Zn2+migration kinetics.Consequently,the Zn@CS@SA electrode demonstrates a high average Coulombic efficiency(CE)of 99.74%over 1000 cycles at 2 mA cm-2and 1 mAh cm-2in the asymmetric cell.The Zn@CS@SA//MnO2demonstrates a four-fold capacity of Zn//MnO2after 1000 cycles at 2 A g-1. 展开更多
关键词 Zn-ion battery Zn electrode Mutual activation effect Hydrogen-bond reconfiguration Self-healing Fast ion-transport
暂未订购 下载PDF
框架理论视域下电影《惊蛰无声》的主题创新与传播价值探赜 认领 引用 被引量：1
4
作者 彭翠 李沂霖 《中北大学学报（社会科学版）》 2026年第2期28-34,共7页
由张艺谋执导、国家安全部指导创作的中国首部聚焦当代国家安全题材的谍战影片《惊蛰无声》,作为2026年春节档的口碑之作,其总票房位居该档期电影票房排行榜第三位。影片从主题设定、社会语境、叙事逻辑、宣传策略、符号建构及认知框架... 由张艺谋执导、国家安全部指导创作的中国首部聚焦当代国家安全题材的谍战影片《惊蛰无声》,作为2026年春节档的口碑之作,其总票房位居该档期电影票房排行榜第三位。影片从主题设定、社会语境、叙事逻辑、宣传策略、符号建构及认知框架等方面,通过搭建“高-中-低”三个层次的框架,实现了主题表达的创新。在三层框架的协同作用下,国家安全观的传播实现了从单向宣传教育向受众主动参与的意义再生产的转向。在深化公众国家安全认知的同时,也为新主流电影弥合主旋律与商业逻辑的鸿沟提供了鲜活范本。 展开更多
关键词 框架理论 主题创新 《惊蛰无声》 国家安全观
暂未订购 下载PDF
抗战时期西南地区报刊的编辑特色、时代功能与当代启示——以《西康新闻》《西康国民日报》为中心的考察 认领 引用
5
作者 彭翠 陈安然 庞瑞灿 《吕梁学院学报》 2026年第3期46-53,共8页
抗日战争进入相持阶段后,西康省为适应建设西南抗战大后方的现实需要而成立,其新闻传播事业也随之迅速发展。以《西康新闻》《西康国民日报》为代表的西康报刊,呈现出定位明确、主题突出、内容多样、注重读者反馈的编辑特色,在抗战时期... 抗日战争进入相持阶段后,西康省为适应建设西南抗战大后方的现实需要而成立,其新闻传播事业也随之迅速发展。以《西康新闻》《西康国民日报》为代表的西康报刊,呈现出定位明确、主题突出、内容多样、注重读者反馈的编辑特色,在抗战时期发挥了动员民众、团结民众、启迪民众的时代功能,在西南地区产生了广泛影响。其所呈现的坚持现实导向,明确自身定位,坚持读者中心等办刊理念对当下新闻传播事业如何充分助力中华民族共同体具有一定的历史借鉴意义。 展开更多
关键词 抗战时期 西南地区报刊 编辑特色 时代功能 当代启示
暂未订购 下载PDF
解放战争时期《人民日报》政治动员探赜(1946-1949年) 认领 引用
6
作者 彭翠 夏鹏宇 陈安然 《保定学院学报》 2026年第3期104-113,共10页
解放战争时期,中国共产党科学把握政治局势,在舆论战线上以《人民日报》为阵地开展政治动员工作。以晋冀鲁豫中央局机关报《人民日报》与中共中央机关报《人民日报》在1946—1949年刊发的新闻文本作为研究对象,围绕阶级对立与社会矛盾... 解放战争时期,中国共产党科学把握政治局势,在舆论战线上以《人民日报》为阵地开展政治动员工作。以晋冀鲁豫中央局机关报《人民日报》与中共中央机关报《人民日报》在1946—1949年刊发的新闻文本作为研究对象,围绕阶级对立与社会矛盾的情感动员、民权觉醒与民族解放的权利动员以及民主团结与统一战线的军事动员等报道内容,运用身份认知与矛盾指向的双重构建、媒介话语与社会实践的互动耦合,以及舆论聚势与韧性表达的宣传话语实现了政治动员的目的。这种动员策略不仅对解放战争的胜利提供了舆论支持和群众基础,而且为新时代党报党刊在国际传播的复杂局势中进一步提升宣传和动员效果,牢牢把握意识形态领导权提供了历史镜鉴。 展开更多
关键词 解放战争 《人民日报》 政治动员 舆论宣传 历史镜鉴
暂未订购 下载PDF
图机器学习泛化性:回顾与展望 认领 引用 被引量：1
7
作者 张子威 王啸 +1 位作者 崔鹏 朱文武 《计算》 CAS 2026年第1期34-43,共10页
图机器学习作为分析和处理关联数据的核心工具,已受到学术界和工业界的广泛关注。随着研究的深入与应用场景的复杂化,泛化性成为制约进一步发展图基础模型和图机器学习实际落地部署的关键瓶颈。传统机器学习理论中的独立同分布假设在图... 图机器学习作为分析和处理关联数据的核心工具,已受到学术界和工业界的广泛关注。随着研究的深入与应用场景的复杂化,泛化性成为制约进一步发展图基础模型和图机器学习实际落地部署的关键瓶颈。传统机器学习理论中的独立同分布假设在图数据中无法满足,使得模型在面临分布偏移、多样任务和不同领域时性能无法保证。本文旨在系统性地回顾与展望图机器学习泛化性的研究进展,将其解构为三维泛化性分类体系:1)图数据泛化性,探讨模型从训练数据到未见图结构的泛化能力,特别是应对分布偏移的图分布外泛化方法;2)图任务泛化性,关注模型处理不同图任务的能力,重点阐述了图预训练和微调以及图提示学习范式;3)图领域泛化性,作为进一步挑战,旨在实现模型对不同领域图数据的泛化,总结了基于大语言模型的方法和基于特征和结构对齐的方法。基于上述总结,最后展望了该领域未来潜在的研究方向,包括理论基础、评估体系、多模态与知识融合、结构化数据通用模型、边界问题等。本研究希望通过总结图机器学习泛化性的研究与展望,推动图机器学习的进一步发展。 展开更多
关键词 图基础模型 泛化性 图分布外泛化 图提示学习 图领域泛化 图不变性学习 图大语言模型
暂未订购 下载PDF
智能传播背景下伴侣机器人的恋爱潜能与伦理困境探究 认领 引用 被引量：1
8
作者 彭翠 赵丽娅 李娇娇 《三明学院学报》 2026年第2期21-30,共10页
随着人工智能技术的迅猛发展和人机交互的深度演进,拥有人类外观且能够走入人类情感地带的伴侣机器人正被投入生产和使用,人类亲密关系的边界被重塑。伴侣机器人在高端智能技术驱动下,呈现出“有趣”“有用”“有温度”等特性,表现了一... 随着人工智能技术的迅猛发展和人机交互的深度演进,拥有人类外观且能够走入人类情感地带的伴侣机器人正被投入生产和使用,人类亲密关系的边界被重塑。伴侣机器人在高端智能技术驱动下,呈现出“有趣”“有用”“有温度”等特性,表现了一定的恋爱潜能。然而,在用户对其抱有热切期待的同时,伴侣机器人也可能会引发侵蚀用户恋爱尊严、损害传统伴侣关系、加剧人际恋爱隔阂等伦理问题。多元主体应合力规范伴侣机器人的未来发展,这既是突破伦理困境的主要力量,也是进一步助力人类情感陪伴、增强用户幸福感的朴素追求。 展开更多
关键词 智能传播 伴侣机器人 恋爱功能 人机关系
暂未订购 下载PDF
The integration of artificial intelligence and high-throughput experiments:An innovative driving force in catalyst design 认领 引用
9
作者 Zhi Ma Peng Cui +4 位作者 Xu Wang Lanyu Li Haoxiang Xu Adrian Fisher Daojian Cheng 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2025年第8期117-132,共16页
The integration of artificial intelligence (AI) with high-throughput experimentation (HTE) techniques is revolutionizing catalyst design, addressing challenges in efficiency, cost, and scalability. This review explore... The integration of artificial intelligence (AI) with high-throughput experimentation (HTE) techniques is revolutionizing catalyst design, addressing challenges in efficiency, cost, and scalability. This review explores the synergistic application of AI and HTE, highlighting their role in accelerating catalyst discovery, optimizing reaction parameters, and understanding structure-performance relationships. HTE facilitates the rapid preparation, characterization, and evaluation of diverse catalyst formulations, generating large datasets essential for AI model training. Machine learning algorithms, including regression models, neural networks, and active learning frameworks, analyze these datasets to uncover the underlying relationships between the data, predict performance, and optimize experimental workflows in real-time. Case studies across heterogeneous, homogeneous, and electrocatalysis demonstrate significant advancements, including improved reaction selectivity, enhanced material stability, and shorten discovery cycles. The integration of AI with HTE has significantly accelerated discovery cycles, enabling the optimization of catalyst formulations and reaction conditions. Despite these achievements, challenges remain, including reliance on researcher expertise, real-time adaptability, and the complexity of large-scale data analysis. Addressing these limitations through refined experimental protocols, standardized datasets, and interpretable AI models will unlock the full potential of AI-HTE integration. 展开更多
关键词 Catalysis Machine learning High-throughput experiment Catalyst Optimization Data-driven research
暂未订购 下载PDF
气候变化下山洪泥石流灾害风险演化特征与前沿科技问题 认领 引用 被引量：4
10
作者 崔鹏 张国涛 +6 位作者 王岩 王姣 张晨笛 谭春萍 李朝月 王子励 周朝栋 《中国科学基金》 CSSCI CSCD 北大核心 2025年第6期959-967,共9页
气候变暖使地球圈层互馈作用日益增强、地表过程变化速率加快,加剧了山洪泥石流灾害发生的复杂性和不确定性,扩大了灾害的威胁范围和对象,是世界各国防灾减灾救灾必须长期面对的难题和巨大挑战。论文系统剖析了气候变化下山洪泥石流灾... 气候变暖使地球圈层互馈作用日益增强、地表过程变化速率加快,加剧了山洪泥石流灾害发生的复杂性和不确定性,扩大了灾害的威胁范围和对象,是世界各国防灾减灾救灾必须长期面对的难题和巨大挑战。论文系统剖析了气候变化下山洪泥石流灾害“频次增加、强度升级、链式效应凸显、风险外延”的新态势,指出传统灾害风险防控体系在理论深度、预警精度、绿色韧性技术及管理—发展融合性等方面存在的不足,提出气候变化新态势下山洪泥石流灾害风险防控的四个前沿科技问题:山洪泥石流对气候变化的响应机制、高精度灾害预测与风险评估理论、流域灾害全过程物质—能量协同调控机理、山区灾害风险防控与流域绿色发展。进而,针对气候变化导致的山洪泥石流灾害风险新特点、减灾需求和科技前沿问题,提出加强气候变化重塑孕灾环境背景下山洪泥石流形成演化机理研究、研建风险评估与“理论—技术—数据”驱动的灾害风险预测预警理论与技术、发展工程—自然融合的绿色减灾模式、建立多元协同且减灾—发展有机融合的山区小流域风险防控机制等应对策略,以期能为气候变化新态势下山洪泥石流灾害风险精细防控与山区高质量发展提供理论依据与技术支撑。 展开更多
关键词 山洪泥石流 气候变化 风险演化 风险防控 绿色减灾
暂未订购 下载PDF
创业知识对创业意愿的影响:创业自我效能感与角色榜样的作用 认领 引用 被引量：3
11
作者 彭翠 贾琦 李宗波 《心理研究》 CSSCI 2025年第1期56-63,共8页
采用问卷调查法对423名应届大学毕业生进行调查,基于社会认知理论考察了创业知识对创业意愿的影响,以及创业自我效能感和角色榜样在该影响过程中的作用机制。结果表明:创业知识对大学生创业意愿和创业自我效能感均具有显著的正向预测作... 采用问卷调查法对423名应届大学毕业生进行调查,基于社会认知理论考察了创业知识对创业意愿的影响,以及创业自我效能感和角色榜样在该影响过程中的作用机制。结果表明:创业知识对大学生创业意愿和创业自我效能感均具有显著的正向预测作用,创业自我效能感在创业知识与创业意愿之间起部分中介作用,父母创业角色榜样与亲朋创业角色榜样对创业知识与创业意愿之间的关系均具有显著的负向调节效应。具体而言,当身边有创业角色榜样时,创业知识对创业意愿的促进作用会被削弱;反之当身边缺少创业角色榜样时,创业知识对创业意愿的促进作用则更明显。 展开更多
关键词 创业知识 创业意愿 创业自我效能感 角色榜样 大学毕业生
暂未订购 下载PDF
Early diagnosis of bipolar disorder 认领 引用
12
作者 Peng Cui Dong-Yu Han Cheng-Hao Yang 《World Journal of Psychiatry》 SCIE 2025年第8期80-87,共8页
Bipolar disorder(BD)is a severe mood disorder characterized by recurrent episodes of mania and depression,and it is prone to delayed diagnosis,which can lead to worsened outcomes,including more frequent mood episodes,... Bipolar disorder(BD)is a severe mood disorder characterized by recurrent episodes of mania and depression,and it is prone to delayed diagnosis,which can lead to worsened outcomes,including more frequent mood episodes,greater functional impairment,and comorbidities.Early diagnosis of BD remains a significant challenge,although recent advances offer promising insights,such as research in molecular biomarkers,neuroimaging,exosomes,genetics,and epigenetics.This mini-review highlights their potential for providing earlier,more accurate identification of BD and discusses the underlying reasons why current research has not yet succeeded.For instance,the high heterogeneity of symptomatic presentations leads to low consistency in study participants;delayed BD diagnosis results in the inclusion of potential BD patients in the depression group;low specificity of biomarkers stems from limited understanding of BD pathophysiology;and there is a possibility that BD is not innate but develops over the course of the disease.Deepening our understanding of BD pathology,identifying more specific biomarkers,and integrating multiomics approaches for validation studies in well-defined homogeneous cohorts hold promise for significant breakthroughs. 展开更多
关键词 Bipolar disorder Early diagnosis Major depressive disorder Biomarker Exosome
暂未订购 下载PDF
地方图景与时空再造:电视剧《珠江人家》的媒介呈现与文化记忆 认领 引用 被引量：2
13
作者 彭翠 尤杏子 陈安然 《吕梁学院学报》 2025年第4期34-40,共7页
媒介地理学将地理空间的概念嵌入媒介学,构建了由空间、时间、景观、地方等因素组成的理论框架。电视剧作为传播城市形象的重要角色将特定的地域文化与媒介形态结合起来,形成了更为清晰可见的虚拟地方图景。本文以《珠江人家》的空间呈... 媒介地理学将地理空间的概念嵌入媒介学,构建了由空间、时间、景观、地方等因素组成的理论框架。电视剧作为传播城市形象的重要角色将特定的地域文化与媒介形态结合起来,形成了更为清晰可见的虚拟地方图景。本文以《珠江人家》的空间呈现与文化记忆为切入点,从空间呈现、时间漫游、文化景观等层面探究岭南人民在抗日战争时期如何通过粤剧、粤菜和粤医药文化的情感连接实现身份认同,并在此基础上引导观众重构地方文化图景。 展开更多
关键词 媒介空间 地方认同 《珠江人家》 媒介时间 媒介景观
暂未订购 下载PDF
自然灾害防治体系建设构想 认领 引用
14
作者 彭建兵 崔鹏 +5 位作者 王会军 殷跃平 刘羽 唐辉明 程谦恭 王飞永 《中国科学基金》 CSSCI CSCD 北大核心 2025年第6期864-871,共8页
在全球气候变化背景下,我国重大自然灾害频发,造成大量基础设施损毁与群死群伤事件,风险防控形势严峻,因此构建高效协同的自然灾害防治体系成为保障国家安全与发展的基础性和战略性支撑。本文在梳理自然灾害防治关键科学技术问题的基础... 在全球气候变化背景下,我国重大自然灾害频发,造成大量基础设施损毁与群死群伤事件,风险防控形势严峻,因此构建高效协同的自然灾害防治体系成为保障国家安全与发展的基础性和战略性支撑。本文在梳理自然灾害防治关键科学技术问题的基础上,从理论创新、技术创新与管理创新三个维度,构建了自然灾害防治八大体系,包括:基础理论体系、隐患识别体系、监测技术体系、预警技术体系、评估技术体系、工程治理体系、应急救援体系、调控管理体系等方面,明晰了各体系的具体内容及其关联性。结合我国自然灾害防治工作现状和短板,提出了推动自然灾害防治体系建设的基础研究、技术研发和国际合作等方面的具体建议,以期为国家科学防灾减灾事业的发展提供决策参考。 展开更多
关键词 自然灾害 防治体系建设 基础理论 技术体系 对策建议
暂未订购 下载PDF
2024年新闻传播领域中华优秀传统文化研究述评 认领 引用 被引量：1
15
作者 彭翠 肖睿 苏锐 《三明学院学报》 2025年第2期66-79,共14页
在新质生产力赋能文化“两创”的背景下,新闻传播学界对传统文化的研究呈现出多元深化态势。基于知网CSSCI来源期刊文献分析,2024年的研究在历史层面关注古代传播媒介与模式;实践层面聚焦新时代文化类节目、游戏及主题出版;技术层面则... 在新质生产力赋能文化“两创”的背景下,新闻传播学界对传统文化的研究呈现出多元深化态势。基于知网CSSCI来源期刊文献分析,2024年的研究在历史层面关注古代传播媒介与模式;实践层面聚焦新时代文化类节目、游戏及主题出版;技术层面则注重数智技术与传统文化的融合;全球层面着重研究传统文化的国际传播。通过本体论、认识论与方法论的综合爬梳,不仅能够明确传统文化领域的代表性成果,而且为进一步“两创”提供了持续探索的可能。 展开更多
关键词 中华优秀传统文化 文化传播 “两创”
暂未订购 下载PDF
共学、共情、共享:论受众视角下文化类节目的 发展逻辑和实践策略 认领 引用
16
作者 彭翠 庞瑞灿 张可心 《井冈山大学学报（社会科学版）》 2025年第4期103-114,共12页
随着弘扬中华优秀传统文化呼声的高涨和现代媒介技术的日新月异,许多现象级的文化类节目不断涌现,但也出现了同质化严重、定位不准、可持续性不强等问题。如何将受众的态度和意愿置于节目发展及创新的引导地位,进而满足受众的求知、审... 随着弘扬中华优秀传统文化呼声的高涨和现代媒介技术的日新月异,许多现象级的文化类节目不断涌现,但也出现了同质化严重、定位不准、可持续性不强等问题。如何将受众的态度和意愿置于节目发展及创新的引导地位,进而满足受众的求知、审美、社交和自我实现等多种需求,这是电视节目理论创新需要思考的重点。实践证明:共学、共情、共享是满足受众多元化需求、培育优质文化节目的重要路径。共学强调优秀文化知识的场景构建与纵深传播,共情注重文化基因的活化利用和情感共鸣,而共享则强调文化记忆的精神传承和跨屏互动的媒介赋权。在受众视角下,共学、共情和共享构成了文化类节目的发展逻辑;构建良好的互动关系,注重受众的沉浸式体验和场景化搭建、活化文化符号、询唤集体记忆、革新媒介技术等便是具体的实践路径。 展开更多
关键词 文化类节目 受众视角 发展逻辑 共学 共情 共享
暂未订购 下载PDF
Existing State and Partitioning of Rare Earth on Weathered Ores 认领 引用 被引量：92
17
作者 Chi Ruan Tian Jun +5 位作者 Li Zhongjun Peng Cui Wu Yuanxin Li Shirong Wang Cunwen Zhou Zhiang 《Journal of Rare Earths》 SCIE EI CAS 2005年第6期756-759,共4页
The existing state and partitioning of rare earth(RE)on weathered ores in Longnan County(LN),Xingfeng County(XF)and Ninghua County(NH)were characterized systematically by standard geological analytical methods.It is f... The existing state and partitioning of rare earth(RE)on weathered ores in Longnan County(LN),Xingfeng County(XF)and Ninghua County(NH)were characterized systematically by standard geological analytical methods.It is found that RE in the weathered rare earth ores exist as four phases:(a)water soluble,(b)ion-exchangeable,(c)colloidal sediment(oxides),(d)minerals,in which mainly as ion exchangeable phase,accounting for nearly 80%of total RE,with about 20%in the form of colloid sediment phase and mineral phase,but very little as aqueous soluble phase.These rare earth partitioning were mainly chosen mid-heavy RE elements,occupying above 60%,but not equal in the four phases.The mid-heavy RE elements were primarily enriched in the ion exchangeable phase up to 40%,while the containment of cerium dioxide is below 2%.The cerium deficiency occurs in the ion exchangeable phase in weathered ore.It results from that the Ce^3+is oxidized into Ce^4+and changes into CeO2.For LN ore,the containment of Y is high in weathered ore because Y-minerals are abundant in original rock. 展开更多
关键词 weathered existing state partitioning rare earths
暂未订购 下载PDF
Scientific challenges of research on natural hazards and disaster risk 认领 引用 被引量：35
18
作者 Peng Cui Jianbing Peng +6 位作者 Peijun Shi Huiming Tang Chaojun Ouyang Qiang Zou Lianyou Liu Changdong Li Yu Lei 《Geography and Sustainability》 CSCD 2021年第3期216-223,共8页
As a discipline,the science of natural hazards and disaster risk aims to explain the spatial-temporal pattern,process and mechanism,emergency response and risk mitigation of natural hazards,which requires a multidisci... As a discipline,the science of natural hazards and disaster risk aims to explain the spatial-temporal pattern,process and mechanism,emergency response and risk mitigation of natural hazards,which requires a multidisci-plinary and interdisciplinary approach.With the support of Natural Science Finance of China(NSFC)and Chinese Academy of Sciences(CAS),in-depth research and systematic analysis on natural hazards and disaster risk were conducted.In this paper,the state of the art in research on natural hazards is summarized from seven aspects:formation process,mechanism and dynamic of natural hazards,disaster risk assessment,forecast,monitoring and early warning,disaster mitigation,emergency treatment and rescue,risk management and post-disaster re-construction.The trends within the natural hazards and disaster risk as a discipline were identified,along with existing shortcomings and significant gaps that need to be addressed.This paper highlighted:1)the scientific challenges including the frontier scientific issues and technological gaps on natural hazards and disaster risk dis-cipline from 2025 to 2035 in China,and 2)the proposal to develop a systemic and holistic natural hazards and disaster risk discipline. 展开更多
关键词 Natural hazards Disaster risk Discipline Progress Challenge Development goals
暂未订购 下载PDF
Satellite-based Observational Study of the Tibetan Plateau Vortex:Features of Deep Convective Cloud Tops 认领 引用 被引量：7
19
作者 Yi-Xuan SHOU Feng LU +3 位作者 Hui LIU Peng CUI Shaowen SHOU Jian LIU 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2019年第2期189-205,248,共17页
In this study, an east-moving Tibetan Plateau vortex(TPV) is analyzed by using the ERA-5 reanalysis and multi-source satellite data, including FengYun-2 E, Aqua/MODIS and CALIPSO. The objective is to demonstrate:(i) t... In this study, an east-moving Tibetan Plateau vortex(TPV) is analyzed by using the ERA-5 reanalysis and multi-source satellite data, including FengYun-2 E, Aqua/MODIS and CALIPSO. The objective is to demonstrate:(i) the usefulness of multi-spectral satellite observations in understanding the evolution of a TPV and the associated rainfall, and(ii) the potential significance of cloud-top quantitative information in improving Southwest China weather forecasts. Results in this study show that the heavy rainfall is caused by the coupling of an east-moving TPV and some low-level weather systems [a Plateau shear line and a Southwest Vortex(SWV)], wherein the TPV is a key component. During the TPV's life cycle, the rainfall and vortex intensity maintain a significant positive correlation with the convective cloud-top fraction and height within a 2.5?radius away from its center. Moreover, its growth is found to be quite sensitive to the cloud phases and particle sizes. In the mature stage when the TPV is coupled with an SWV, an increase of small ice crystal particles and appearance of ring-and U/V-shaped cold cloud-top structures can be seen as the signature of a stronger convection and rainfall enhancement within the TPV. A tropopause folding caused by ageostrophic flows at the upper level may be a key factor in the formation of ring-shaped and U/V-shaped cloud-top structures. Based on these results, we believe that the supplementary quantitative information of an east-moving TPV cloud top collected by multi-spectral satellite observations could help to improve Southwest China short-rangeowcasting weather forecasts. 展开更多
关键词 Tibetan Plateau vortex multi-spectral satellite observations short-rangeowcasting weather forecasts cold U/V-shaped cloud top tropopause folding
暂未订购 下载PDF
Partitioning properties of rare earth ores in China 认领 引用 被引量：14
20
作者 CHI Ru ＇an LI Zhongjun +2 位作者 PENG Cui ZHU Guocai XU Shengming 《Rare Metals》 SCIE EI CAS 2005年第3期205-209,共5页
The properties of rare earth partitioning in Chinese industrial rare earth ores were analyzed. Rare earth ores can be divided into the single-mineral type ore with bastnaesite, the multi-mineral type ore with bastnaes... The properties of rare earth partitioning in Chinese industrial rare earth ores were analyzed. Rare earth ores can be divided into the single-mineral type ore with bastnaesite, the multi-mineral type ore with bastnaesite and monazite, and the weathering crust type. Both the Bayan Obo rate earth ore and the Zhushan rate earth ore are a kind of mixed ore, consisting of basmaesite and monazite. Their rate earth partifionings are strongly enriched in light rate earths, where CeO2 is 50% and the light rate earth partitioning is totally over 95%. The Mianning rate earth ore as well as the Weishan rate earth is a kind of rate earth ore only having basmaesite. Their rare earth partitionings are also strongly enriched in light rate earths, in which CeO2 is 47% and the light rare earth partitioning is totally over 94%. For the weathering crust type rate earth ore, there are the Longnan rare earth ore, the Xunwu rare earth ore, and the middle yttrium and rich europium ore. In the Longnan rate earth ore, which is strongly enriched in heavy rate earths, Y2O3 is 64.83%, and the heavy and light rate earth partitionings are 89.40% and 10.53%, respectively. In the Xunwu rate earth ore, which is strongly enriched in light rate earths, CeO2 is 47.16%, and the light rate earth partitioning is totally 93.25%. Y and Eu are enriched in the middle yttrium and rich europium ore. Its middle rare earth partitioning is totally over 10%, and Eu2O3 and Y2O3 are over 0.5% and 20%, respectively, which are mainly industrial resources of the middle and the heavy rare earths. 展开更多
关键词 rare earth ore partitioning bastnaesite monazite weathered crust ore
暂未订购 下载PDF
已选0条
引用分析
参考文献
引证文献
 统计分析
检索结果
已选文献
上一页 1 2 … 6 下一页 到第 页
在线咨询 使用帮助 返回顶部 意见反馈