Results 21 to 30 of about 108,561 (174)
, 2021 为研究混凝土抗拉和抗压强度与试件尺寸的关系,利用Lei提出的广义最弱链公式,假设混凝土内部缺陷分布形式服从均匀分布或泊松分布,建立相应分布形式下的混凝土强度尺寸效应统计模型,实现了在给定失效概率情况下通过小尺寸混凝土试件强度对全尺寸构件强度的预测。3个案例中混凝土强度数据分析表明:在缺陷服从均匀分布假设下,尺寸效应统计模型能够很好地反映普通混凝土和RPC抗拉强度与尺寸的关系;RPC混凝土内部缺陷分布更接近于均匀分布,尺寸效应统计方法能描述抗压强度与尺寸的关系。
钱桂安 +4 more
core
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Bone restoration is often hindered by the spatiotemporal dysregulation of immune and regenerative signals. Conventional bio‐inert implants, providing only passive support, fail to modulate this microenvironment, leading to infections and poor healing.
Zhizhong Sun +8 more
wiley +1 more source
Journal of Healthcare Engineering, Volume 2018, Issue 1, 2018., 2018 A terminology (or coding system) is a formal set of controlled vocabulary in a specific domain. With a well‐defined terminology, each concept in the target domain is assigned with a unique code, which can be identified and processed across different medical systems in an unambiguous way.
Yinsheng Zhang +2 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The growing deployment of high‐frequency electronic systems has intensified the demand for high‐performance microwave absorption materials. In this work, we developed La‐V co‐substituted barium hexaferrites, Ba1‐xLaxFe11.9V0.1O19 (BLFVO), via a sol‐gel route.
Zhihui Yang +7 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Through grain boundary segregation engineering, a crack‐free high‐strength CoCrNi medium‐entropy alloy (MEA) can be successfully fabricated via laser powder bed fusion (PBF‐LB). The influence of micron‐sized TiC particles on microstructural evolution, grain boundary segregation behavior, and mechanical properties was systematically ...
Cunliang Pan +9 more
wiley +1 more source
, 2023 提出了一种用于钢板-混凝土组合梁的新型带孔开槽板咬合式剪力连接件，以解决钢-混组合结构因界面滑移造成的组合度下降问题。为揭示该新型咬合式连接件组合梁的受力机理，开展了一系列抗弯和抗剪试验研究，以剪跨比、含钢率、混凝土类型、板式连接件厚度及间距为主要参数，分析不同参数对组合梁破坏模式、承载能力和变形延性等方面的影响。研究发现：咬合式连接件能有效提高组合梁的组合度，减小界面滑移，充分发挥钢板-混凝土共同工作效应；所有试件在破坏前均表现出良好的延性；因芯材混凝土材性差异，以超高性能混凝土（UHPC ...
严旭, 张维, 赵晓龙, 黄振宇
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Managing diabetic wounds requires simultaneously addressing their infectious, oxidative, and regenerative impairments. To address this, this study integrates a piezoelectric BiOCl@CuSe heterojunction (PFM‐verified) into an injectable F127/HA hydrogel, creating an ultrasound‐responsive smart dressing.
Jiayan Guo +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Eutectic high‐entropy alloys (EHEAs) have attracted significant attention due to their balanced mechanical properties and promising applications. Nonetheless, the correlation between the solidification mechanism of eutectic microstructures and their mechanical properties remains elusive.
Yi Qin +15 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang +9 more
wiley +1 more source
Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT Skin wound injuries are often accompanied by bacterial infections and severe inflammation. Especially, M1‐type macrophages at the wound site can trigger a cascade of inflammatory responses, mediating a vicious cycle of inflammation. Meanwhile, hypoxia further exacerbates vascular damage and constriction in the wound microenvironment, thereby ...
Xianfeng Wang +6 more
wiley +1 more source