Results 101 to 110 of about 2,938 (184)
Jianzhu Gangjiegou Jinzhan, 2008 铝合金和CFRP（碳纤维增强复合材料）都具有轻质、耐腐性强、无磁性等优点,将两者组合应用于结构中既能发挥出它们共同的优势,又能相互弥补各自不足。本文以轴心受力为主的杆系空间结构为背景,对圆管截面和方管截面的CFRP增强铝合金构件的受力性能进行了系统的试验研究,包括18个短管轴压试验,15个长管轴压稳定试验和6个弯曲试验。基于试验进行了理论分析,提出了基于铝合金名义屈服强度的组合构件轴心受压承载力计算公式和组合管局部屈曲承载力计算公式;并提出了组合构件抗弯刚度的计算方法;还比较了多个计算模型 ...
冯鹏, 林旭川, 钱鹏, 叶列平
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Review of Research on the Digitalization of Power Generation System [PDF]
With the development and evolution of the information revolution, promoting the integration of a new generation of digital technology with traditional power generation system, and promoting the digital construction of power generation systems is an ...
CHANG Xiqiang +3 more
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Zhongshan Daxue xuebao. Yixue kexue ban, 2004 【目的】评价彩色多普勒超声心动图在急性心肌梗死及其并发症诊断中的应用价值?【方法】 分析本院120例住院急性心肌梗死患者的临床及超声心动图资料?【结果】 超声心动图检出心肌梗死112例,并发症27例(室壁瘤10例,左室附壁血栓2例,室间隔穿孔2例,中?重度二尖瓣返流13例);超声心动图与心电图对广泛前壁和前壁心肌梗死部位及范围的估测高度一致;超声心动图估测心肌梗死部位与冠状动脉造影所示病变血管供血区域基本相符;非单一部位心肌梗死时,超声心动图较易漏诊下壁或右室梗死?【结论 ...
王景峰, 张小玲
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Mechanical properties and crack propagation law of coal under different CO2 adsorption time [PDF]
The structural deformation caused by CO2 adsorption has a significant effect on the stability of coal seam. The authors studied the effect of CO2 adsorption time on the mechanical properties of coal and analyzed the variation of mechanical parameters of ...
CHEN Lipeng +5 more
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Overview of Current Situation and Trend of Offshore Wind Power Development in China [PDF]
Under the carbon peak goal and carbon neutral vision, offshore wind power has made great progress in China in recent years. The current development status and future planning of offshore wind power in China were analyzed, summarizing the installed ...
MA Kuichao +5 more
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Zhejiang Daxue xuebao. Lixue banEstablished entrepreneurship research has mainly focused on the impact of external entrepreneurial capital on the type of entrepreneurship, ignoring the role of entrepreneurs' own entrepreneurial psychological capital based on intergenerational ...
石钰璇(SHI Yuxuan), 王琛(WANG Chen)
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Advancements and future outlook in fundamental research and technological applications for ammonia co-firing with coal [PDF]
Energy security and the “dual carbon” goals are impacting the global energy industry and supply chains, presenting some urgent needs for the secure, efficient, and green low-carbon transformation of energy and power systems in China.
Peng MA +5 more
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台湾第一部钢骨钢筋混凝土构造(SRC)设计规范之设计理念与重点内容
Jianzhu Gangjiegou Jinzhan, 2006 本文主要阐述台湾第一部钢骨钢筋混凝土构造(SteelReinforcedConcrete,SRC)设计规范之发展过程与重点内容,包括SRC构造之建筑与力学特色、SRC构造之设计理念、SRC构造之强度计算方法、耐震设计与SRC梁柱接头之设计细则等。台湾“SRC构造设计规范”可以适用于由钢梁或包覆型SRC梁、包覆型SRC柱或钢管混凝土柱(CFT)共同组成之SRC建筑构造。过去多年以来,由于台湾的建筑设计规范并未明订SRC构造设计之规定,使得工程师在进行SRC构造设计时缺乏一套依循的标准。所幸在“内政部 ...
翁正强
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Research on the characteristics of CO2-water interface and the law of dissolution and mass transfer under the condition of carbon sequestration in goaf [PDF]
As an important negative carbon technology to solve the carbon emission problem in the coal industry, the CO2 sequestration in the mine goaf has a wide application prospect in the secondary utilization of waste resources in the goaf and the capture and ...
Bing ZHU +7 more
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Zhongshan Daxue xuebao. Yixue kexue ban脑卒中时缺血缺氧致脑组织功能损伤，且缺血后脑组织再恢复血液供应时，大量自由基、钙超载等引起脑缺血/再灌注损伤，进一步加重病情。自噬是一种维持细胞内环境稳态的自我保护机制，但过度自噬引起脑组织损伤。MiRNA为小的内源性非编码RNA分子，通过与其靶基因mRNA的3’ -UTR中的互补序列结合，导致翻译抑制或mRNA降解，从基因水平上调控多种生理活动。MiRNA不仅直接作用于自噬相关蛋白，还可通过多种信号通路，参与缺血/再灌注诱导的自噬调控。但关于miRNA调控脑缺血 ...
刘筱蔼, 罗友根
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