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Rare Metals, Volume 45, Issue 3, March 2026.ABSTRACT NiFe‐based MIL‐55 metal‐organic frameworks (MOFs) face challenges in achieving atomically precise composition and reliable methods for uniform growth. This study addresses these challenges by applying a slow evaporation crystallization technique to crude colloidal MIL‐55 products from hydrothermal synthesis, resulting in highly uniform ...
H. R. Haris +10 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT A major challenge in fabricating eutectic NiTiNb alloys is the incomplete melting of Nb due to its much higher melting point than the NiTi matrix. In this work, a novel electron‐beam freeform additive manufacturing strategy is developed to eliminate unmelted Nb particles and achieve a fully eutectic structure through independent dual‐wire ...
Qing‐Da Zhang +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2017 探讨樟子松人工林林下土壤粒度特征随林分密度的变化及影响，以期为毛乌素沙地以樟子松为建群种的植物固沙模式提供理论依据。以陕西省榆林市珍稀沙生植物保护基地内8个密度梯度（925～2 700 株/hm2）的沙地樟子松人工林为研究对象，分别采集0—20，20—40 cm 2层土壤样本，测定土壤粒度组成，计算分析平均粒径、标准偏差、偏度、峰态值和分形维数。结果表明：研究区各层土壤粒度组成以砂粒为主，其次是粉粒、黏粒；粒度特征整体呈现粒径较粗、分选较差、偏态正和峰态为中至窄的特点，土壤分形维数分布于1.422～2 ...
马成忠, 丁国栋
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du +9 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 目的探讨胃癌组织端粒酶活性表达与其临床病理特征的关系。方法应用端粒酶重复序列扩增（telom-eric repeat amplification protocol,TRAP）银染TRAP-ELISA方法检测25例胃癌组织（实验组）和25例胃不典型增生组织（对照组1）及正常胃组织（对照组Ⅱ）中端粒酶活性的表达,并胃癌组织与临床病理分期、病理分级及预后关系进行分析。结果实验组中端粒酶活性表达率为91.1%,对照组Ⅰ端粒酶活性表达率为20%,对照组Ⅱ无表达,实验组端粒酶活性高于两对照组 ...
刘国辉 +3 more
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Gaoya dianqi, 2020 变压器是电网最为核心的设备,绕组变形是变压器主要的故障类型之一,频率响应分析法（frequency response analysis, FRA）是目前广泛应用的绕组变形检测方法。为提高绕组变形分类诊断的性能,文中提出基于粒子群算法优化支持向量机（particle swarm optimization-support vector machine, PSO-SVM）的变压器绕组变形分类方法,采用数学统计方法提取频率响应曲线的特征参量,并输入到支持向量机模型进行训练,利用粒子群算法优化支持向量机模型参数 ...
刘伟 +4 more
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Shuitu Baochi Xuebao, 2021 坡面地形变化是影响侵蚀泥沙颗粒特征的重要因素，深入理解地形因子与侵蚀泥沙颗粒粒径组成及分选特征的关系是研究坡面土壤侵蚀动力学的基础。采用野外降雨试验和粒径分析试验，结合ArcGIS系统识别和提取得到地形因子数据，研究低山丘陵地区侵蚀泥沙颗粒特征及其与地形因子的关系。结果表明：（1）在试验条件下，侵蚀泥沙中黏粒和粉粒总含量远高于砂粒，粗颗粒含量与坡度因子呈显著正相关关系 ...
朱方方 +3 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Developing low‐energy‐input electrocatalytic systems for efficient hydrogen production is crucial for advancing sustainable energy technologies. The overall hydrazine splitting (OHzS) has emerged as a promising strategy to reduce the overall energy consumption by replacing the sluggish oxygen evolution reaction.
Haozhou Chen +13 more
wiley +1 more source
转录因子Foxp3对RAW264.7细胞表型及免疫抑制相关基因的影响
Zhongguo shiyan zhenduanxue, 2013 目的应用过表达转录因子Foxp3的小鼠巨噬细胞RAW264.7细胞模型,探讨转录因子Foxp3对RAW264.7细胞表型及免疫抑制相关基因的影响,从而为移植排斥提供新的细胞治疗措施奠定基础。方法采用脂质体转染重组质粒pIRES2-EGFP/mFoxp3及空载质粒pIRES2-EGFP至小鼠巨噬细胞RAW264.7细胞系,经G418筛选后,免疫荧光显微镜及流式细胞术检测GFP表达、RT-PCR检测Foxp3表达以鉴定表达效果;采用RT-PCR检测转染重组质粒pIRES2-EGFP/mFoxp3 ...
张英林 +4 more
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The limited osteogenic capacity of magnesium phosphate cement (MPC) has constrained its biomedical applications, underscoring the necessity to develop MPC with enhanced physical properties and bone‐forming capabilities. In this study, a multifunctional MPC system was developed by incorporating zoledronic acid‐loaded near‐infrared (NIR ...
Bin Wang +8 more
wiley +1 more source