Results 41 to 50 of about 1,764 (187)
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Weakening the electrostatic attraction between Mg2+ ions and H− ions in MgH2 is vital for improving the kinetic performance of MgH2 for hydrogen storage. Herein, a multivalent microenvironment is synergistically created by Mn and Mg2Ni to break the stable structure of MgH2, enabling rapid and stable de/hydrogenation performance.
Ya‐Ke Wu +7 more
wiley +1 more source
, 1982 研制出两种适合于爆炸硬化的板状炸药,并具体应用于高锰钢整铸辙叉的表面硬化。从宏观硬度、显微硬度和金相组织等方面,分析了炸药厚度、爆炸次数、合金元素、晶粒度以及表面脱碳等因素对高锰钢硬化效果的影响 ...
陈维波, 赵士达
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Gongye shui chuli, 2014 煤矿矿井水富含悬浮物、铁离子和锰离子等物质，直接外排会污染水体，破坏环境。介绍了辽宁锦州某煤矿的矿井水除铁除锰工程。该工程针对矿井水中悬浮物与铁、锰离子含量过高的现状，采用“调节池（曝气）+絮凝沉淀+锰砂过滤器”工艺对其进行处理。结果表明，处理出水铁离子质量浓度≤0.3 mg/L，锰离子质量浓度≤0.1 mg/L。该工艺处理效果明显，运行稳定，处理出水24 h不返色。
白振光
doaj +2 more sources
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
openaire +2 more sources
Functional Ecology, Volume 39, Issue 10, Page 2889-2904, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In the Southwest Australian Biodiversity Hotspot, the greatest plant species diversity tends to occur on the most phosphorus (P)‐impoverished soils. Many plant species in this P‐impoverished environment release root carboxylates that mobilise soil P which is a more ...
Xue Meng Zhou +5 more
wiley +1 more source
Functional Ecology, Volume 39, Issue 2, Page 635-652, February 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Invasive plants are a major cause of the global biodiversity crisis; it is therefore crucial to understand mechanisms that contribute to their success. South‐western Australia is a global biodiversity hotspot with extremely low soil phosphorus (P) concentrations.
Dan Tang +7 more
wiley +1 more source
, 1990 选择压力峰值10—20GPa、脉冲宽度0.04—1.6μs等一系列脉冲载荷,利用轻气炮等模拟爆炸硬化过程,探索高锰钢爆炸硬化的微观机制,根据实验结果判断 ...
李明山, 赵士达, 史国顺
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, 2005 开发了液相氧化法处理海底锰结核的工艺,并对结核中锰的浸出进行了研究。初步实验结果表明:该工艺在技术上是可行的,在一定温度、空气流量及碱矿比条件下,锰结核中的锰大部分能被从结核中浸出。通过对结核中锰浸出率的各影响因素的考察,提出了液相氧化法从海底锰结核中提取锰的适宜工艺条件。该工艺不仅适用于浸出海底锰结核 ...
王云山, 李佐虎, 李浩然
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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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, 2014 为实现石煤与软锰矿焙烧样中钒锰的共提取,并解决石煤二段硫酸化焙烧过程中酸过量的问题,通过多因素研究探讨石煤与低品位软锰矿焙烧样耦合浸出工艺对钒锰共浸出率的影响,为石煤及低品位软锰矿焙烧样中钒锰资源高效综合利用提供了参考和依据。试验结果表明,当石煤与低品位软锰矿焙烧样的配矿比为1∶1、矿浆液固比为5∶1及浸出温度为80℃时,耦合浸出体系中钒的浸出率可达98.13%,而锰的浸出率可达99.45%。对耦合浸出体系的钒锰浸出动力学研究表明,钒浸出过程是通过固体产物层的内扩散控制,其表观活化能为22.401 kJ/
周宇照 +5 more
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