Results 31 to 40 of about 17,790 (198)
Enhanced Oxygen Reduction Reaction Performance of Fe‐N4 Single‐Atom Catalysts Through Fe3C Coupling
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Understanding the electronic factors contributing to the high oxygen reduction reaction (ORR) activity of Fe‐N4 sites remains a significant challenge due to the localized Fe 3d orbitals and their sensitivity to the coordination environment.
Shichang Cai +19 more
wiley +1 more source
血清铁自动分析法试剂盒的研制与评价:Nitro-PAPS直接光度法
Zhongguo shiyan zhenduanxue, 2007 目的研制、评价血清铁Nitro-PAPS自动分析法试剂盒。方法在表面活性剂存在下,用2-（5-硝基-2-吡啶偶氮）-5-[N-正丙基-N-（3-磺酸丙基）氨基]苯酚二钠（Nitro-PAPS）作显色剂双试剂两点终点法测定血清铁。结果该方法显色络合物最大吸收波长为591 nm,线性范围达85μmol/L,表观摩尔吸光数为1.11×105L.mol-1.cm-1,回收率为98.5%-104.1%,批内变异系数（CV）和批间变异系数分别为0.021和0.035,与原子吸收分光光度法（AAS）比较相关良好,Y ...
王贤俊, 杨秀勤, 马连学
doaj
Etnografia é, etnografia não é
Ilha Revista de Antropologia, 2017 Usando uma noção de "digital" como uma de suas metáforas principais, uma versão do termo que se apoia na discussão de Kara Keeling sobre o "humanismo digital", este texto argumenta que há algo sobre as não-linearidades que definem a diferença da digitalidade que pode nos ajudar a pensar sobre recalibragens no próprio projeto etnográfico.
Araujo, F. N., Jackson, John L.
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Electrically Switchable Altermagnetism in Monolayer MoCl3
Rare Metals, Volume 45, Issue 9, September 2026.ABSTRACT Altermagnets intertwine spin‐split bands with vanishing net magnetization, offering great potential for high‐density, stray‐field‐free spintronic devices. However, their development is hindered by both material scarcity and difficulties in external control due to their intrinsic symmetry protection.
Zhengming Zhang, Zhenyu Fan, Dunhui Wang
wiley +1 more source
四川大学学报. 自然科学版, 2008 本文阐述了高能球磨法、蒸发冷凝法、微乳液法等纳米铁粉的典型制备方法,从生产工艺和产物粉体的粒径分布、纯度等方面评述了各种方法的优缺点.重点介绍了一种制备方法——自悬浮定向流法,该方法所得Fe纳米颗粒粒径分布均匀,纯度较高.
吴栋 +5 more
doaj
Iron Ore Pricing in China: Financialization Through a Marxist Lens
Abacus, Volume 62, Issue 3, Page 922-956, September 2026.We offer a Marxist interpretation of financialization as we examine the Chinese market for iron ore and the shift in the pricing mechanism from an annual fixed price to an indexed price from 2010. Drawing upon Marx's theory of the circuit of capital, we illustrate an empirical case of financialization that results from the conflict between social ...
Xun Gong, Eagle Zhang, Corinne Cortese
wiley +1 more source
Sexo é maldição, ódio é amor [PDF]
Revista Latinoamericana de Psicopatologia Fundamental, 2015 e o amor. Porem nao se trata do amor idealizado, mas sim daquilo que ele comporta de paradoxal, da sua face maldita, obscena e tragica. E no estudo das obras literarias de Nelson Rodrigues, Gregorio de Matos e Fernando Pessoa que este livro demonstra a afirmacao freudiana de que os artistas ja sabiam o que mais tarde a psicana-lise veio revelar: a ...
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Metal nanoclusters provide abundant catalytically active sites and unique electronic structures that are highly beneficial for enhancing photocatalytic performance; however, their practical application is often hindered by poor photostability.
Yiying Qin +6 more
wiley +1 more source
Gongye shui chuli, 2009 采用烧杯试验考察了投加高铁酸钾强化混凝去除矿井水中铅、镉、铁、锰的效果。结果表明,高铁酸钾为30mg/L时,混凝沉淀对低浓度矿井水中铅、镉、铁、锰的去除率分别约为55%、28%、93%、54%;高铁酸钾对模拟高浓度矿井水中铅、镉、铁、锰的去除率随pH的升高而提高,pH8～10范围内对铅、镉、铁、锰有较好的去除效果,去除率可分别达到约95%、61%、97%和92%。处理后的矿井水中重金属含量可以达到饮用水标准,这给矿井水提供了很好的利用前景。
何文丽 +4 more
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