Results 41 to 50 of about 32,188 (207)
Rare Metals, EarlyView.ABSTRACT Multi‐element Prussian blue analog (PBA) nanocomposites have attracted wide attention for their superior characteristics to single‐functional nanomaterials in extensive applications of diagnosis and therapy. In this study, a novel hollow nanocomposite was designed and fabricated by embedding S2− and Ag nanoparticles into a NiCuMnFe (PBA).
Tao Ji +7 more
wiley +1 more source
Discursos Fotograficos, 2014 Resenha de: SILVA, Mylton Severiano da. Realidade - História da revista que virou lenda. Florianópolis: Editora Insular, 2013. 320 p.
openaire +3 more sources
Rare Metals, EarlyView.ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan +10 more
wiley +1 more source
Study on Influences of Subway Construction on Neighboring Surface and Buildings [PDF]
, 2016 近年来，我国城市化进程加快，城市地铁建设发展迅猛，为缓解城市交通拥堵发挥了重要作用。然而，地铁大多位于城市繁华地区，地面建筑物林立，施工对周边建筑物所产生影响也表现得越来越突出。本文以厦门市轨道交通1号线工程为背景，在对实测变形监测资料详细分析的基础之上，研究了地铁施工引发周边建筑地基及地表变形的预测方法，总结了地铁施工引发周边建筑地基变形的影响因素与规律，提出了适用于厦门地区地铁施工对周边建筑物影响的控制指标及安全评估方法。主要研究内容及成果如下： （1）根据实测数据统计 ...
张佳
core
Iron Ore Pricing in China: Financialization Through a Marxist Lens
Abacus, EarlyView.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
野生动物学报, 2008 目的:通过对9只来自野外和园内养大的云豹毛中锌、铜、铁、钙4种元素检测,了解云豹对这4种元素代谢特点与产生脱毛症的关系。方法:从云豹尾部的上1/3处采毛,用原子吸收光谱法检测。结果:在所检测的9只云豹中,其中3只患脱毛症的云豹毛中铜元素含量都低于4.4μg/g,其他3种元素所测结果表明与脱毛症均没有直接关系。结论:铜元素缺乏可能与云豹患脱毛症关系密切。
马再玉 +3 more
doaj
Preparation and Magnetic Properties of NFC Ferrite sheets with High Permeability and Low Magnetic Loss Via Aqueous Tape Casting [PDF]
, 2015 近距离无线通讯（NFC）技术在最近几年发展迅速，与移动设备尤其是与手机的结合，将会极大地促进NFC技术的发展。移动设备上NFC功能的顺利实现，需要解决的硬件问题是制备一种高磁导率、低损耗的烧结铁氧体片。本论文采用固相反应法制备预烧铁氧体粉末，通过水基流延成型工艺制备铁氧体坯片，研究工艺条件、助熔剂及D离子对铁氧体片的烧结密度、微观形貌和磁学性能等的影响。通过工艺、成分和成型工艺的组合调整，制备出满足NFC功能使用的高磁导率、低磁损耗、高截止频率、厚度较薄且具有较好磁导率温度稳定性的烧结铁氧体膜片。 首先，
马腾
core
The influence of the electrical boundary condition on domain structures and electrocaloric effect of PbTiO3 nanostructures [PDF]
, 2016 本文在基于金兹堡—朗道—德文希尔唯象理论的相场法理论下，应用有限差分方法及四阶龙格—库塔法数值求解，研究不同电学边界条件对铁电纳米点畴结构演化和热电温度效应的影响。本文所用的中间电学边界条件，可以用来表示表面电极与纳米点之间的黏合情况及电极对表面电荷的补偿情况，进而说明退极化电场和退极化电能对系统自由能的影响，不同以往的对退极化能进行权重处理，具有实际的物理意义。 当电学参数λ0为0时，中间电学边界可以退化为开路电学边界条件；当λ0趋向无穷大时，对应于短路电学边界条件，即表面电荷可充分补偿。λ0的值越大，
陈志英
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Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT The monoclinic CuNb2O6 (M‐CNO) with a columbite structure is a potential anode candidate for advanced lithium‐ion capacitors (LICs). However, its practical application is plagued seriously by the irreversible phase transformation and sluggish kinetics.
Xu‐Ting Li +6 more
wiley +1 more source
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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