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Simulation of people's evacuation in tunnel fire 被引量:5
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作者 杨高尚 彭立敏 +1 位作者 张进华 安永林 《Journal of Central South University of Technology》 EI 2006年第3期307-312,共6页
The simulation model Tunev(tunnel evacuation) was developed for people's evacuation in tunnel fire. It contains simple database of the people's behavioral reaction and structure characteristic parameters of tunnel... The simulation model Tunev(tunnel evacuation) was developed for people's evacuation in tunnel fire. It contains simple database of the people's behavioral reaction and structure characteristic parameters of tunnel fireproofing. The model can be used to calculate the total evacuation time in various scenes when fire occurs in the different locations of the tunnel. Combined with fire simulation soft ware CFD- POENICS3.5, Tunev model can be used to calculate the fire danger coming time; by comparing with these two kinds of time, it can be used to assess the safety of the evacuation, and the evacuation process also have a dynamic demo. The simulation results show that the Tunev model can be used to predict the reliability of safe evacuation for people in tunnel fire and provide references for people's safe escape scheme. Some relevant concepts of the model were described and an evacuation simulation of a typical tunnel case, i.e. Xuefeng Mountain Tunnel was performed by using this model. And the model's validation and actual aoolication were also described. 展开更多
关键词 tunnel fire people's evacuation simulation model
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Study of Product Quality Information and Construction of Its Decision-Making Support System and Measures to Improve People's Quality Concept
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作者 RUAN Jin-yuan 1, SUN Shu-tao 2, YU Xin-qi 2, RUAN Xin 3 (1. Ordance Institute of General Equipment Department, Shijiazhuang 05 0000, China 2. Graduate School of Chinese Academic of Science, Beijing 100042, China +1 位作者 3. East China University of Science and Technology, Shanghai 200232, China 4. Meterology Bureau of Hebei Province, Shijiazhuang 050021, China) 《厦门大学学报(自然科学版)》 CAS CSCD 北大核心 2002年第S1期234-235,共2页
The 21th century is a "quality century". Facing the s evere challenge about quality, all the developed industry countries attach impor tance to the research and education about quality project. With the deep... The 21th century is a "quality century". Facing the s evere challenge about quality, all the developed industry countries attach impor tance to the research and education about quality project. With the deepening of the reform of China and it’s joining to WTO, many industries and enterprises wi ll be confronted with severe challenge while being offered the opportunity to wa lk up to the world. The arrival of knowledge economy and web time has provided t he space for the innovation on enterprise management. It has also provided new m ethod and model for enterprise management, that is online management based on th e internet. The online management use an enterprise model including the goal of the enterprise and the scheme to carry out it to represent the whole operational of all the work. The online management is constructed on the integration of exp ert system, database, software and other technical models. How to scientifically manage the entire system of product, precisely master the condition of quantity and quality and analyze the rules of the change of produc t quality in order to carry out the overall control of quality, guarantee the go od condition of product as well as improve product quality and prolong it’s se rvice life was discussed in this thesis. Based on the above research the thesis also discussed how to develop the study on product quality information and const ruct it’s decision making support system. The concrete measures to improve peopl e’s concept of quality are also raised. Based on the type analysis, scientific management of product quality information should start from dynamic information of quality, instruction information as we ll as the information about the use, maintain, management and conservation of pr oduct, and induce them and further propose a design scheme of feedback system on product quality information, and then set up the blueprint of the information s ystem of product quality. This thesis included 7 chapters:1.the type of quality information;2.the content of quality information;3.the construction of the se nsitive web for transfering information, and collecting and transfering quality information rapidly and effectively;4.the way and procedure to transfer informa tion;5.the construction of quality information library for all phases; 6.the d isposal of quality information;7.the decision making support system of the mana gement of quality information;8.attach importance to three key factors on impro ving quality concept. 展开更多
关键词 product guality information decision-making sup port system of management of guality information peoples guality concept
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2006年第2期176-176,共1页
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2006年第10期1029-1029,共1页
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2006年第9期932-932,共1页
Aims and scope of the Journal. Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press, under the auspice of De... Aims and scope of the Journal. Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press, under the auspice of Department of Health, General Logistics Department of PLA, and it is issued domestically and abroad. Med J Chin PLA has become one of the source journals of statistics in Chinese Scientific Thesis and Chinese Scientific Quotation Database, the key periodical of multiple-subject medical journals, and is a prize journal of National Periodical Award and one of the Top Hundred Periodicals in China. Med J Chin PLA is issued monthly. Its permanent sections include Expert Forum, Research on Special Topics, Medical Treatises, Experimental Research, Clinical Research, Technology and Methodology, Discussion of Knotty Cases (Pathology), Reviews, Military Medical Sciences, News in Medicine etc. Manuscripts sent by both domestic and overseas writers are welcome. Contribution of reviews is usually invited by the Editors, but recommendations for topics and authors are welcomed. 展开更多
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2006年第4期376-376,共1页
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2006年第7期744-744,共1页
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2008年第7期918-918,共1页
Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press,under the auspice of Depa... Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army (Med J Chin PLA) is a multiple-subjects medical periodical published by the People’s Military Medical Press,under the auspice of Department ofHealth, General Logistics Department of PLA,andit is issued 展开更多
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2008年第1期120-120,共1页
Aims andscope of the Journal.Medical Journal of Chinese People's Liberation Army(Med J Chin PLA)is a multiple-subjects medical periodical published by the People's Military Medical Press,under the auspice of D... Aims andscope of the Journal.Medical Journal of Chinese People's Liberation Army(Med J Chin PLA)is a multiple-subjects medical periodical published by the People's Military Medical Press,under the auspice of Department of Health,General Logistics Department of PLA,and it 展开更多
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2008年第6期784-784,共1页
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Medical Journal of Chinese People′s Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2006年第3期278-278,共1页
关键词 s Liberation Army INsTRUCTIONs TO AUTHORs Medical Journal of Chinese people
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Development of antiinflammatory agents and immunopharmacology in the People’s Republic of China
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《中国药理学通报》 CAS CSCD 北大核心 1989年第5期-,共7页
With the rapid advance of academic activities in the field of phar-macology,antiinflammatory and immunopharmacology has become abranch of pharmacology in our country.Under professor Zhou Jin-huang’s charge and concer... With the rapid advance of academic activities in the field of phar-macology,antiinflammatory and immunopharmacology has become abranch of pharmacology in our country.Under professor Zhou Jin-huang’s charge and concerns,the first national conference of anti-inflammatory and immunopharmacology was held at Huang Shan in1982.In following years,the frist training class for antiinflamma-tory and immunopharmacological studies was conducted in Hefei. 展开更多
关键词 Development of antiinflammatory agents and immunopharmacology in the people s Republic of China
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Medical Journal of Chinese People's Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2007年第2期178-178,共1页
关键词 Medical Journal of Chinese peoples Liberation Army INsTRUCTIONs TO AUTHORs
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Medical Journal of Chinese People's Liberation Army INSTRUCTIONS TO AUTHORS
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《解放军医学杂志》 CAS CSCD 北大核心 2008年第8期1048-1048,共1页
Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army ( Med J Chin PLA) is a multiple-subjects medical periodical publishedby the People’s Military Medical Press,under the auspice of Depa... Aims andscope of the Journal .Medical Journal of Chinese People’s Liberation Army ( Med J Chin PLA) is a multiple-subjects medical periodical publishedby the People’s Military Medical Press,under the auspice of Department of Health, General Logistics Department of PLA,andit 展开更多
关键词 Medical Journal of Chinese peoples Liberation Army INsTRUCTIONs TO AUTHORs
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结合视图感知CNN和Transformer的阿尔茨海默病诊断研究 被引量:1
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作者 吴慧东 刘立程 潘丹 《电子测量技术》 北大核心 2025年第1期145-153,共9页
为解决阿尔茨海默病(AD)患者大脑结构性核磁共振影像(sMRI)病变细微复杂和空间异质性分布引起的病症诊断准确率低的问题,提出了一种结合卷积神经网络(CNN)和Transformer优势的混合架构,用于AD病症诊断。首先,设计了多视图特征编码器,通... 为解决阿尔茨海默病(AD)患者大脑结构性核磁共振影像(sMRI)病变细微复杂和空间异质性分布引起的病症诊断准确率低的问题,提出了一种结合卷积神经网络(CNN)和Transformer优势的混合架构,用于AD病症诊断。首先,设计了多视图特征编码器,通过构造融合混合注意力机制的视图局部特征提取器分支,从sMRI的冠状面、矢状面和轴向面方向提取潜在互补信息,并通过多视图信息交互学习策略增强病灶区域的语义表征。其次,设计了级联式多尺度融合子网络,逐层融合多尺度特征图以生成更丰富判别信息。最后,利用Transformer编码器建模了全脑sMRI的全局特征表示。在阿尔茨海默病神经影像倡议(ADNI)数据集上的结果显示,本文方法在AD分类和轻度认知障碍(MCI)转化预测任务的准确率分别达到了94.05%和81.59%,优于多种现有方法。 展开更多
关键词 阿尔兹海默病 结构性核磁共振成像 混合架构 多视图信息 多尺度特征
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The Formation of Marx’s Critical View
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作者 Liu Xiaohua Huang Mingli 《学术界》 CSSCI 北大核心 2020年第7期210-217,共8页
Marx’s spirit of pursuing truth,his hatred of exploitation system and sympathy for laborers prompted him to move from the young Hegelian school to fehbaism and eventually to communism,and completed the transformation... Marx’s spirit of pursuing truth,his hatred of exploitation system and sympathy for laborers prompted him to move from the young Hegelian school to fehbaism and eventually to communism,and completed the transformation from idealism to thorough dialectical materialism in the world view.To do so,he constructed his own theoretical system based on criticism and targeted the social practice,providing ideological weapon for the transformation of unreasonable social forms.Thereby,the unit of"critical weapon"and"weapon of criticism"was accomplished historically and logically,fulfilling the construction of his critical view. 展开更多
关键词 Marx’s critical view GERMINATION DEVELOPMENT EsTABLIsHMENT
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The Strategic Re-view of China’s Territorial Sovereignty
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作者 MA Xiaojun 《国际展望》 2010年第6期1-22,125,共23页
This paper re-examines the status quo of China's territorial sovereignty security from a strategic perspective.Territory is the most basic physical where-about for a country to express national sovereignty.It is t... This paper re-examines the status quo of China's territorial sovereignty security from a strategic perspective.Territory is the most basic physical where-about for a country to express national sovereignty.It is the territory that the national sovereignty derives its physical basis from.In the context of globalization,however, the traditional national territorial sovereignty space is continually squeezed and constrained,but the national territorial sovereignty is still the cornerstone of the international relations.And the inviolability of national territorial sovereignty is still the most important principle of modern international law.In this regard,the primary goal of Chinese national security today remains as a goal to safeguard the unification,integrity and security of China's territorial sovereignty.At present,the integrity,unification and security of Chinese national territorial sovereignty have yet to be achieved on the strategic level.As one of China's basic national conditions,it should be taken seriously and paid adequate strategic attentions. 展开更多
关键词 The strategic Re-view of China s Territorial sovereignty view RE
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民生改善:居民消费升级的新动能——基于CFPS数据的分析 被引量:1
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作者 李立清 韩佩松 李燕凌 《华东经济管理》 北大核心 2025年第12期119-128,共10页
文章利用2018—2022年中国家庭追踪调查(CFPS)数据,探讨民生改善对居民消费升级的影响及作用机制。研究发现:民生改善显著促进居民消费升级,尤其对东部地区、农村以及低学历、低收入群体作用更突出。民生改善对发展型消费促进作用最明显... 文章利用2018—2022年中国家庭追踪调查(CFPS)数据,探讨民生改善对居民消费升级的影响及作用机制。研究发现:民生改善显著促进居民消费升级,尤其对东部地区、农村以及低学历、低收入群体作用更突出。民生改善对发展型消费促进作用最明显,享受型消费次之,生存型消费较弱;就业与教育改善促进效果最强,医疗、住房、社保等次之,缩小贫富差距作用较弱。民生改善通过提高家庭收入、提振消费信心,促进居民消费升级;政府干预在民生改善促进居民消费升级中发挥正向调节作用。从保障和改善民生视角拓展了促进居民消费升级的可行路径,为推动经济发展与民生改善的良性循环提供有益参考。 展开更多
关键词 民生改善 消费升级 家庭收入 消费信心 政府干预
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基于核心素养的人教版七年级生物学新教材HPS材料分析 被引量:1
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作者 赵婷婷 《天津师范大学学报(基础教育版)》 北大核心 2025年第2期56-61,共6页
HPS(科学史、科学哲学与科学社会学)材料可用于体现生物学核心素养。人教版七年级生物学新教材共包含26则HPS材料,新增多则材料,凸显了科学精神与科学家精神。研究认为:新教材调整了材料呈现位置与内容,促进核心概念建构与核心素养培养... HPS(科学史、科学哲学与科学社会学)材料可用于体现生物学核心素养。人教版七年级生物学新教材共包含26则HPS材料,新增多则材料,凸显了科学精神与科学家精神。研究认为:新教材调整了材料呈现位置与内容,促进核心概念建构与核心素养培养,具有丰富的育人价值。教师要深入分析新教材,灵活使用这些HPS材料,以情境导入激发学习动机,以单元教学促进概念建构,以经典实验培养科学思维与探究能力,以多元化的活动落实课程思政。 展开更多
关键词 HPs 核心素养 人教版新教材 初中生物学
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老年人互联网使用如何影响代际同住——基于CLASS数据的研究
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作者 朱铭来 王本科 《人口与发展》 北大核心 2025年第2期105-115,共11页
在人口老龄化加剧与互联网迅速发展的背景下,互联网对老年人居住安排方式的影响亟待明确。基于2016—2020年中国老年社会追踪调查数据,采用面板Logit模型、工具变量法和倾向得分匹配法,实证研究了老年人互联网使用对其代际同住安排的影... 在人口老龄化加剧与互联网迅速发展的背景下,互联网对老年人居住安排方式的影响亟待明确。基于2016—2020年中国老年社会追踪调查数据,采用面板Logit模型、工具变量法和倾向得分匹配法,实证研究了老年人互联网使用对其代际同住安排的影响。研究表明老年人互联网使用会显著降低代际同住的可能性。这一影响主要通过改变个体禀赋和思想观念发挥作用,在基本养老保障水平较高、城市户籍及受儒家文化影响较弱的老年群体中更加显著,呈现明显的群体异质性。此外,不同类型的互联网活动对代际同住的影响也存在差异。上述发现有助于深入理解互联网时代老年人居住安排方式的变迁趋势,对制定针对性的养老政策具有参考价值。 展开更多
关键词 互联网使用 代际同住 养老禀赋 养老观念
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