Results 31 to 40 of about 1,045,758 (80)
ABSTRACT Magnetic particles coated with carbon shells have been considered as promising electromagnetic wave absorption materials with antibacterial features. However, how to precisely control the monodispersed magnetic nanoparticles on a carbon matrix to manipulate impedance matching and antibacterial performances is still a key challenge.
Xiaofei Li +10 more
wiley +1 more source
基于削弱耗能梁截面尺寸的原理,提出了一种新型带弯剪屈服耗能梁段的K形偏心支撑钢框架结构。为验证其抗震性能,完成了1个1∶2.6缩尺的单层、单榀、单跨模型的拟静力试验。结果表明,试验模型的塑性变形基本局限在耗能梁段上,且主要通过耗能梁端部上、下翼缘和中部的腹板耗散能量,试件表现出较好的耗能能力和延性。为进一步研究其抗震性能,在试验模型的基础上改变了中部剪切型耗能梁(简写为SL)的长度lm,采用ABAQUS有限元软件建立了8个数值模型并对之进行了滞回性能分析,分析了滞回曲线、承载力、刚度及耗能能力等随lm ...
陈世玺 +5 more
doaj
ABSTRACT Rationally selection of precursor additives during perovskite crystallization is essential for obtaining high‐quality films and achieving high‐performance perovskite solar cells (PSCs). However, the discovery and optimization of effective additives still rely heavily on time‐consuming and costly trial‐and‐error experiments.
Zhimin Feng +12 more
wiley +1 more source
Research Progress and Prospect of Single‐Atom Materials in Tumor Catalytic Therapy
ABSTRACT Tumor catalytic therapy (TCT), an emerging therapeutic modality, exerts specific cytotoxic effects on tumor cells by catalyzing endogenous substances within the tumor microenvironment (TME)—including hydrogen peroxide (H2O2), glucose, and glutathione—to generate reactive oxygen species (ROS) or deplete protective biomolecules.
Youyu Wang +4 more
wiley +1 more source
ABSTRACT Traditional electromagnetic shielding materials mainly focus on attenuating electromagnetic interference (EMI), but they still fail to meet the growing demands of modern flexible electronic devices and Internet‐related information technologies.
Zhi Lei +6 more
wiley +1 more source
利用混合生命周期评估方法对木质成型颗粒的可持续性进行评价,结果表明:木质成型颗粒全生命周期的能耗为0.11MJ/MJ颗粒,其中直接能耗79%,间接能耗21%,所占比例最大的是颗粒生产阶段的电力投入和生产设施投入;颗粒全生命周期的温室气体(GHG)排放为215kg CO_2-eq/t颗粒,颗粒生产电力消耗造成的排放最大,其次是颗粒燃烧直接排放;生物质成型颗粒具有良好的可持续性 ...
刘华财 +4 more
core +5 more sources
Time‐Efficient Columnar‐to‐Equiaxed Transition via High Magnetic Field Processing
ABSTRACT The need to simplify processing routes and improve processing efficiency motivates the development of time‐efficient methods for inducing the columnar‐to‐equiaxed transition (CET) during solidification while tailoring material performance. Conventional multistep CET approaches are time‐consuming and often struggle to simultaneously regulate ...
Chendong Zhao +12 more
wiley +1 more source
ABSTRACT Esophageal cancer is the seventh leading cause of cancer death, and the energy depletion in cancer cells can be achieved through synergistic therapy. The integration of sonodynamic therapy and chemotherapy offers a promising comprehensive treatment strategy for esophageal cancer.
Mengya Li +4 more
wiley +1 more source
针对传统钢框筒结构地震耗能差和震后修复难度大等问题,结合剪切型耗能梁段耗能能力强及震后易修复、钢框筒抗侧刚度大、高强钢强度高且节约材料的优点,提出一种新型高层钢结构形式——含可更换剪切型耗能梁段的高强钢框筒结构(HSS-FTS)。给出了HSS-FTS的初步设计方法和耗能梁段的布置原则。为比较HSS-FTS和传统钢框筒结构(FTS)的抗震性能,采用SAP2000各建立了一个40层的HSS-FTS和FTS有限元模型,验证了有限元建模的合理性,分别对两个结构进行反应谱分析和动力弹塑性时程分析。结果表明 ...
张浩, 连鸣, 苏明周
doaj
ABSTRACT The limited crack resistance of coarse grain boundaries and coarse interfaces leads to an incompatibility between high‐temperature strength and ductility in TiAl alloys. Tailoring stress‐oriented textures and multiscale heterogeneous interfaces can effectively impede crack propagation, thereby overcoming this trade‐off.
Kexuan Li +7 more
wiley +1 more source

