Results 71 to 80 of about 32,646 (211)
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT TiFe‐based hydrogen storage alloys have garnered significant attention because of their cost‐effectiveness, high hydrogen capacity, and favorable hydrogen absorption/desorption characteristics. However, practical application was limited by activation challenges and sensitivity to environmental poisoning.
Yuehai Li +8 more
wiley +1 more source
Review on the different method of dating mafic-ultramafic rocks in the orogenic belt - taking the Shunchang massif as an example [PDF]
, 1996 Based on the analysis of different dating methods of isotopic system and the dating results of the metamorphic mafic-ultramafic rocks in Shunchang, Northern Fujian, it s proposed in the paper that the U-Pb method of single zircon and the method of the ...
Li, J, Ren, S, Sun, M, Zhou, X
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The sluggish kinetics of the oxygen reduction reaction (ORR) necessitate developing oxygen electrodes with enhanced electrocatalytic activity for practical zinc–air battery applications. In this study, an iron‐doped copper sulfide electrocatalyst (CuFeNS‐PNC) anchored on metal–organic framework‐derived carbon substrates was designed, featuring
Taichong Chitboonyakasem +4 more
wiley +1 more source
Dianci bileiqi, 1989 通常,电瓷制造中采用的原料含有少量的铁的氧化物.和日用瓷生产中对铁质的看法相类似,在电瓷中也将原料中铁的氧化物视为有害的杂质.随原料进入坯料的铁的化合物一般为如下的含铁矿物:黄铁矿、白铁矿、菱铁矿、磁铁矿、赤铁矿、方铁矿、氢氧化铁和黑云母等.自然而然就会产生这样一个问题——上述铁的化合物在电瓷配方中的有害程度如何?一些含铁矿物,例如黑云母,无疑是一种有害杂质,因为它使坯体膨胀 ...
李玉书, 王正平
doaj
浙江大学学报. 医学版研究表明，铁代谢和铁死亡影响了髓系肿瘤的发生发展，可以作为其治疗靶点。铁代谢失调存在于多种髓系肿瘤中：急性髓系白血病的预后与铁代谢分子的差异表达相关；伴随铁过载的骨髓增生异常综合征患者预后不良；骨髓增殖性肿瘤常表现为缺铁和红细胞增多共存，可通过靶向铁调素进行治疗。髓系肿瘤细胞容易受到活性氧积累的影响而发生氧化损伤，具有铁死亡敏感性。在急性髓系白血病和骨髓增生异常综合征中，铁死亡均具有抗肿瘤作用；在慢性髓系白血病中，靶向铁死亡可以逆转伊马替尼耐药。本文综述了髓系肿瘤发生发展中铁代谢水平的特征 ...
王 雨涤 +3 more
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Diversidade e EducaçãoO artigo tem como objetivo fornecer subsídios legais para os/as educadores/as enfrentarem os desafios impostos por um contexto sociopolítico reacionário, promovendo práticas pedagógicas que valorizem a diversidade, os direitos humanos e a igualdade de gênero na escola.
Gabriela Bieger Reyes +2 more
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Dianci bileiqi, 2001 将国产除铁器与进口除铁器的性能参数、除铁能力进行了比较 ,提出了改进除铁器的措施和一种新的判定除铁器除铁能力的方法。并指出除铁器应向大功率、高导磁率耦片电磁除铁器方向发展。
李勇, 初秀珍
doaj
Gaoya dianqi, 2023 磁致伸缩和麦克斯韦应力是换流变压器铁心振动的主要原因，当铁心中存在气隙时，由麦克斯韦应力引起的铁心振动不可忽略。文中基于PSCAD搭建了特高压直流输电系统仿真模型，得到了换流变压器正常工作时谐波电压和谐波电流特点。建立了3种不同铁心结构的换流变压器模型，研究了不同结构铁心的磁场和麦克斯韦应力分布特点。在此基础上，从理论上推导了麦克斯韦应力与谐波电压的数学关系，研究了不同结构铁心在基波和谐波电压共同作用下麦克斯韦应力的大小关系以及在麦克斯韦应力作用下铁心表面振动加速度大小关系。研究结果表明 ...
汲胜昌 +6 more
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É a ciência artística ou a arte é científica?
Babel: Revista Eletrônica de Línguas e Literaturas Estrangeiras, 2012 A partir do fruto de um trabalho de extensão (e pesquisa), cujo fim é formar contadores de estórias em Língua Estrangeira (LE), projeto em andamento na cidade de Alagoinhas-Ba. UNEB-Campus II. Tendo escolhido o subtema: diálogo entre ciência e arte, busco discutir dos tantos diálogos possíveis contidos nessa ceára, a arte de contar estórias como meio ...
openaire +2 more sources
Zhongguo shiyan zhenduanxue, 2006 目的检测血清铁（Serum Iron）、铁蛋白（Ferritin）和可溶性转铁蛋白受体（Soluble transferrin receptor,sTfe）等指标,并分析这些指标在诊断妊娠妇女缺铁性贫血中的临床意义。方法采用免疫分析法和比色法测定43例妊娠2428周妇女和同期收集的30例健康妇女的血清铁、铁蛋白和可溶性转铁蛋白受体的水平,利用SPSS10.0软件对实验数据进行统计学分析。结果妊娠组血清铁、可溶性转铁蛋白受体、叶酸均值较正常对照组无显著差异,铁蛋白均值为19.62±11.52 ng/L ...
李红霞 +5 more
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