Results 31 to 40 of about 15,214 (117)
T形件是钢管混凝土框架梁柱半刚性连接节点的重要组件,其抗拉承载力计算会影响到梁柱节点的抗弯承载力计算。根据欧洲规范的EC 3组件法,总结了T形件的3种塑性失效模式,并提出了钢管混凝土柱T形件各部件承载力计算方法。根据不同的失效模式和屈服线理论,确定了矩形或弧形端板控制的T形件抗拉承载力计算公式,利用柱腹板壁约束简化模型和柱壁破坏机制确定了柱翼缘壁控制的T形件抗拉承载力计算公式。采用算例说明其计算过程和计算精度。通过试验验证了所提钢管混凝土柱T形件连接的抗拉承载力计算方法的准确性。
黄春晓 +3 more
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Light‐Synergistic Enhanced Synaptic Devices Toward Superadditive In‐Sensor Computing
ABSTRACT Conventional neuromorphic devices face challenges in achieving efficient integration of light sensing and synaptic computation because of structural and material limitations. In this work, we developed an indium‐tin‐zinc oxide/transparent gelatin electrolyte synaptic transistor incorporating rare metal indium.
Wei Zhong +16 more
wiley +1 more source
首先介绍了图数据模型、图数据库和图计算的基本原理,包括图数据库的数据模型、查询语言以及常见图计算方法等。然后详细阐述了电力系统的图数据模型构建方法,将系统组件表示为节点,组件间关系表示为边。最后设计了碳流计算的图算法流程,利用AtlasGraph图数据库及图计算组件进行碳流传递迭代计算。该方法充分利用图数据库和图算法的优势,实现了对电力系统碳流的精确高效计算。该研究为电力系统碳排放的监测、分析和优化提供了有力支持,对于推动电力系统绿色低碳发展具有重要意义。
朱广新, 周春雷, 李俊妮, 宋继勐, 史昕, 沈子奇
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ABSTRACT The use of Ti6Al4V alloy in dental implantation is constrained by its high elastic modulus and biological inertness, which lead to delayed osseointegration and a high failure risk. Additionally, its chemical incompatibility with hydroxyapatite (HA) impedes the development of stable bioactive composites.
Shangyong Zuo +8 more
wiley +1 more source
ABSTRACT Lithium‐rich manganese‐based cathodes (LRM) deliver high discharge capacities beyond 250 mAh g−1, but their practical deployment is restricted by irreversible oxygen redox, structural reconstruction, sluggish kinetics and unstable cathode‐electrolyte interfaces (CEI). Here, we develop a colloid‐assisted anchoring‐diffusion engineering strategy
Jia‐Nan Hao +13 more
wiley +1 more source
大规模电力系统的规划、设计、运行和控制涉及到大量的计算问题。本书将应用于电力系统的各种数值计算方法进行了总结,是目前国际上唯一一本专门讲述电力系统计算方法的书。译者从事电力系统领域的教学和科研工作多年,承担过"计算方法"和多门电力系统领域课程的讲授,深深感到,一方面,透彻掌握电力系统规划、设计、运行和控制的相关理论,开发或熟练应用电力系统分析软件 ...
Mariesa L.Crow, 徐政
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ABSTRACT Developing rapid, precise gas sensors for Listeria monocytogenes (LM) biomarker detection faces challenges due to suboptimal gas‐solid interactions. Herein, we report the rational synthesis of amino‐functionalized mesoporous SiO2 hollow nano‐doughnuts (MS‐2‐NH2‐2) via modification with (3‐aminopropyl) trimethoxysilane (AAPTMS), which enables ...
Xingyu Wang +7 more
wiley +1 more source
ABSTRACT Carbides strengthen the grain boundaries; nevertheless, excessive carbide precipitates embrittle the grain boundaries of high‐temperature alloys during prolonged service. Here, we provide direct evidence of solute rare‐earth atoms and demonstrate that they can trap vacancies and inhibit interstitial diffusion, restraining carbide precipitation
Jiali Zhang +10 more
wiley +1 more source
研究了自由飞行空间机器人(FFSR) 捕捉运动目标的力矩控制算法及其仿真。在建立计算FFSR关节驱动力矩的求解算法的基础上,结合基于广义雅可比矩阵的分解运动速度控制法,提出了一种捕捉运动目标的力矩控制算法;并且计算机仿真验证了所提出算法的有效性。
李华忠, 洪炳熔
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