Results 41 to 50 of about 10,240 (187)
Jianzhu Gangjiegou Jinzhan, 2022 提出一种钢管混凝土柱-横肋波纹钢板剪力墙，其中横肋波纹钢板作为主要抗剪单元以其较大的面外刚度和良好的抗整体屈曲性能有效延缓了面外失稳的发生，并提供了稳定的抗侧承载力。多根钢管混凝土柱与波纹钢板组合形成的异形剪力墙可适应住宅钢结构中的墙体转角造型，且能够有效提高剪力墙的面外稳定性能。在结构应用设计时，需提出该新型体系的合适简化分析模型。根据横肋波纹钢板剪力墙的构造组成和力学特性，提出采用正交异性板单元的简化模拟方法，在MIDAS软件中建立典型异形剪力墙的简化模型并与ABAQUS模型进行对比 ...
胡婉颖, 余玉洁, 赵凤涛
doaj
Study On Structure Mechanics Analysis Of High - rise Isolated Buildings In Moderate Earthquake Intensity And High Wind Pressure Area [PDF]
, 2017 隔震建筑经历了实际地震的考验，表现出了优良的减震性能；目前，人们对于高层隔震建筑的减震原理并未清晰，高层隔震建筑也存在结构倾覆稳定的问题，隔震技术并未广泛的应用于高层建筑中。高层隔震建筑在减震与抗风方面对隔震层刚度的要求存在矛盾之处，结构减震效应与风控的均衡，尤其是中烈度高风压地区，是个很有研究价值的课题。 本文对高层隔震建筑隔震层的设计展开了详细的介绍，输入三维地震波，验算了本文研究案例隔震层设计的可行性。从模态分析与反应谱分析的角度，研究了高层隔震建筑的减震原理；分析了高层隔震建筑在设防烈度为7度 ...
廖才振
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Characteristics of Soil Active Carbon Fractions and Carbon Pool Stability in Major Forest Types in Northern Daxing’an Mountains [PDF]
[Objective] Soil organic carbon is an important component of the carbon cycle in forest ecosystems, and active organic carbon can indicate changes in soil carbon pools.
CAI Tijiu, LIU Beibei
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The escalating issue of drug‐resistant pathogens, largely driven by the overuse of conventional antibiotics, has become a significant global health threat. Developing alternative therapeutic strategies and fabricating natural biological enzyme materials that mimic the high efficiency, selectivity, and mild‐operating conditions of natural ...
Shuai He +11 more
wiley +1 more source
Jianzhu Gangjiegou Jinzhan, 2005 打黑渡怒江大桥拱架为钢结构,采用万能杆件拼装而成,形成空间桁架。由于拱架是整个拱桥拱肋施工的直接支撑结构,所以拱架本身的强度和稳定性就显得特别重要。针对拱桥施工中的这一关键技术问题,本文对该桥拱架整体及在整个拼装过程中各阶段的强度和稳定性进行了分析,同时也计算了相应的拱桥拱肋的强度及稳定性和拱架应设置的最终预拱度。根据计算结果,对整个施工过程提出了重要的有价值的改进意见。
吴高峰, 徐鸿
doaj
Flame stability detection method for co-firing of biomass fuels based on digital image processing [PDF]
, 2019 Combustion of low-quality fuels or fuel blends will lead to flame instability, resulting in low combustion efficiency and high NOx emissions. Due to the inherent complexity of burner flames and the lack of an effective means for flame monitoring and ...
Ge, Hong +3 more
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International Journal of Urban and Regional Research, Volume 50, Issue 1, Page 191-220, January 2026.Abstract Henry George advocated for capturing land value increases for public ends. The active approach of public authorities organizing and financing land development can help capture higher land value increases, as Hartman and Spit indicate. However, this approach hardly happens in developing countries, where the coalition of private developers and ...
Nannan Xu
wiley +1 more source
Guangtongxin yanjiu, 2011 光子晶体光纤传感器的稳定性在实际工程应用中具有重要影响。文章分析了光子晶体光纤压力传感器的基本原理,介绍了光子晶体光纤压力传感器的系统组成,从理论上分析了传感器系统相对于光源波长变化、输出信号光强起伏及环境温度波动的稳定性。光子晶体光纤压力传感器激光光源的输出功率及波长的波动、敏感元件长度的改变和环境温度的变化等都对整个传感器系统的稳定性有影响。
余先伦, 陈猛, 郑旭武
doaj
, 2005 随着我国加入WTO和经济金融体制改革的不断深入,我国金融业面临全面对外开放的日期日益临近。在这种激烈的竞争形势下,借鉴国外金融控股公司发展经验,研究我国如何稳健发展金融控股公司很有现实意义。运用制度经济学分析方法,分析比较了金融控股公司的主要优势和西方国家金融控股公司发展的主要情况,并进一步从理论和我国实际的角度阐述了我国金融控股公司发展中存在的主要问题与障碍 ...
谢清河
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Ultrasound in Obstetrics &Gynecology, Volume 66, Issue 3, Page 290-297, September 2025.ABSTRACT Objective The purpose of this cost‐utility analysis was to model the clinical and economic impact of three cervical‐length screening strategies among low‐risk twin pregnancies: two‐step universal screening (at 18–20 and 20–22 weeks), one‐step universal screening (at 18–20 weeks) and no screening.
Y. Khaikin +4 more
wiley +1 more source