Results 41 to 50 of about 17,790 (198)
“Agro é tech, agro é pop, agro é tudo”?
Revista TamoiosO objetivo deste artigo é apresentar um panorama dos conflitos pela água produzidos e intensificados pelo agronegócio em Minas Gerais entre os anos de 2002 e 2022, a partir do aporte teórico-metodológico da Ecologia Política. Para tanto, foi desenvolvida uma pesquisa qualitativa, de caráter descritivo.
José Vitor Palhares dos Santos +2 more
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Glycerophosphocholine‐Mediated Dual Regulation for Highly Stable Aqueous Iron‐Ion Batteries
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Iron‐ion batteries (FeIB) offer the advantages of low cost and high capacity, demonstrating potential for large‐scale energy storage. However, severe hydrogen evolution reaction (HER) occurs during cycling, which significantly impacts battery lifespan.
Tian Yang +6 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Ultrathin, lightweight, and mechanically compliant electromagnetic interference (EMI) shields are increasingly required for high‐frequency electronic devices. However, conventional metallic shields predominantly rely on conductivity‐driven reflection mechanisms, which become ineffective at reduced thickness and may cause severe secondary ...
Zida Zhang +7 more
wiley +1 more source
Sociologias Plurais, 2012 Comumente, em referência a atletas de futebol, evoca-se uma masculinidade tradicional (BONINO, 2008), definida como modelo social hegemônico. No presente artigo, refletir-se-á sobre a chamada "área reservada masculina" (MAGUIRE & DUNNING, 1997), considerada como relevante à manutenção das estruturas patriarcais. A partir de coberturas jornalísticas
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Rationally designing an electrocatalyst to achieve stable and efficient urea oxidation reaction (UOR) is crucial but still challenging, especially for ampere‐level application. Herein, Mn and Fe dual‐doped Ni0.85Se (Mn/Fe–Ni0.85Se) catalyst is synthesized via a facile and scalable electrodeposition and followed by selenization.
Guanglin Zhu +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Although alloy‐based materials present potential for peroxymonosulfate (PMS) activation, metal ion leaching remains severely restricted during the pollution degradation process. Herein, the porous carbon‐supported Fe–Cu alloy derived from industrial copper slag was prepared to remove the organic pollutants from wastewater while inhibiting the ...
Xuanren Chen +10 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2006 目的探讨缺铁性贫血与促红细胞生成素的关系。方法采用EPO测定法,血浆EPO浓度的测定运用了ELISA测定法,用Blotkalbumin取代血液BSA进行非特异性蛋白结合部分的实验,并采用了YHA、EPO、EPOGIN标准,在进行老鼠血浆浓度测定时,YHA———EPO标准的运用的稳妥性的认证。结论通过实验分析由缺铁性贫血而导致血液中携氧能力的下降,会使血浆中EPO浓度增加,促进红细胞的生成。此外,在铁缺乏的状态下,特久训练会促成EPO的生成。然而,对于机能增加而相关联的携氧能力的改善 ...
孙良吉, 张苏, 吴翱
doaj
, 1981 本工作对钒钛磁铁矿中三种精矿粉的物相组成及还原过程进行了研究。 A、B二铁精矿的主要物相组成为磁铁矿和钛铁矿,其中网格状显微结构是钛铁晶石的氧化产物——钛铁矿和磁铁矿。在500～800℃温度范围内观察到钛铁晶石在还原过程中经过钛铁矿。钛铁矿在还原过程中若有过剩的氧化铁存在,也经过钛铁晶石。粗粒钛铁矿经过预氧化可显著改善其还原性。B矿在600 ...
石笙陶, 储绍彬
core
Metal‐Based Materials for Redox Modulation in Biomedicine
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Metal materials have become increasingly important in modulating biological redox networks for therapeutic and diagnostic purposes, owing to their distinctive electronic properties and adaptable reactivity. This review synthesizes recent developments across various metal‐based materials, including elemental metals, metal oxides, coordination ...
Yan Fan +7 more
wiley +1 more source
, 1994 本文对铁浴煤氧喷射气化反应机理进行了理论分析和实验考察。结果表明，射流氧首先使铁氧化成中间产物ＦｅＯ，并弥散分布于熔铁中，中间产物ＦｅＯ液滴进而被溶解碳和熔池内煤气泡中ＣＯ及Ｈ＿２还原，最终生成以ＣＯ和Ｈ ...
王大光, 郭占成, 许志宏
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