Results 31 to 40 of about 37,717 (167)
Calcium-binding capacity of organic and inorganic ortho- and polyphosphates [PDF]
The aim of this research was to determine the calcium-binding capacity of inorganic and organic ortho- and polyphosphates. This calcium-binding capacity can be used to influence the stability of, for example, casein micelles in dairy systems.
Hooijdonk, A.C.M., van +4 more
core +2 more sources
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The utilization of carbonaceous anodes in electrochemical systems, particularly potassium‐ion batteries (PIBs), remains hindered by sluggish kinetics and modest capacities, which are caused by the intrinsic ion storage mechanisms and constrained interlayer spacings.
HaiSong Chen +7 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2007 制备出一种新型弱酸性非抑制电导检测阳离子色谱固定相，并通过对色谱条件的摸索选择，成功实现了常见一价、二价阳离子的分离检测，以及过渡金属离子Ni2+，Mn2+的分离检测.选用甲基磺酸溶液（2 mmol • L-1）和草酸（0.5 mmol• L-1）的混合液作为流动相，一步分离并测得了Li+、Na+、NH4+、K+、Mg2+、Ca2+ 6种阳离子的检测限和线性范围.选用酒石酸（2 mmol• L-1）和草酸（1 mmol • L-1）的混合溶液为流动相，成功分离并测得了过渡金属离子Ni2+，Mn2 ...
GUOYan-ru(郭龑茹) +2 more
doaj +1 more source
Preparation and Characterization of Sulfur Modified Lithium Iron Silicates as Cathode Materials [PDF]
, 2016 硅酸铁锂作为一种新型的聚阴离子型正极材料，具有原料丰富、结构稳定、理论容量高等优点，有望成为理想的动力电池正极材料。硅酸铁锂完全脱出两个锂离子对应的理论容量高达333mAh/g，但由于第二个锂离子的脱嵌电压过高和体积变化过大，硅酸铁锂只能脱出一个锂离子。硫改性能有效地降低硅酸铁锂的脱嵌电压和结构破坏，从而实现第二个锂离子的脱嵌，因此，有必要探索硫取代硅酸铁锂的合成方法，从而制备出高性能的硫取代硅酸铁锂正极材料。本论文采用溶胶-凝胶和固相烧结法，以硫脲作为硫源 ...
张存皓
core
Investigating the Origin of Topological‐Hall‐Like Resistivity in Zn‐Doped Mn2Sb Ferrimagnet
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Skyrmions and other chiral spin textures have been extensively studied as potential building blocks for novel spintronic devices. Hall‐resistivity anomalies that deviate from magnetization scaling, known as the topological Hall effect, have been widely employed as evidence for the presence of chiral spin textures in magnetic materials. However,
BoCheng Yu +9 more
wiley +1 more source
Gaoya dianqi, 2012 离子风在航天、环境、材料、能源和军事等领域有着广阔的应用前景。笔者依据电晕放电的原理,提出了一种"多针—网"的结构,成功实现了离子风的激发。在针电极电压为-4 310 V、网电极接地的实验条件下,该装置激发的离子风风速可达1.1 m/s。另外,笔者利用机械式法拉第筒对离子风进行了微电流检测,检测电流强度最高可达-10 nA,相比而言,加高压前的离子风装置的暗电流仅为-40 pA。实验结果表明,"多针—网"结构可以作为离子源使样品电离,并使大量的样品离子随离子风的流动而运动,完成样品离子的进样。因此,这种"
龚涛, 唐飞, 王晓浩
doaj
He jishu核子分离能作为核子俘获或放出反应的反应能，对反应率起主导作用，继而会直接影响相关天体核合成过程。核脊回归（Kernel Ridge Regression，KRR）方法和考虑奇偶效应的核脊回归（Kernel Ridge Regression with odd-even effects，KRRoe）方法被应用到了核子分离能的描述中。通过分析在实验已知区域的描述精度和外推性能，详细对比讨论了两个方法对双中子分离能（S2n）、双质子分离能（S2p）、单中子分离能（Sn）和单质子分离能（Sp）的描述情况 ...
郭 粤颖 +3 more
doaj +1 more source
Research on Synthesis, Self-Assembly Behavior and pH Responsive Property of A Novel Hybrid POSS-based Copolymer with Zwitterion [PDF]
, 2016 摘要 POSS是一种纳米级分子内杂化结构，具有强度高、模量大、耐磨性好、抗氧化性强、生物相容性优异的特点，是一类应用广泛的材料；两性离子是一类存在于自然界生物体中的物质，分子链同时带相等数目正负电荷，这种特殊结构赋予其良好的生物相容性、抗非特异蛋白吸附能力、反聚电解质性、pH敏感性等，是近年来的研究热点。目前基于两性离子共聚物的研究中，与两性离子单体共聚的单体种类少、聚合物结构较为单一，且研究缺少对两性离子结构在体系自组装、环境响应性及作为药物控释载体对药物的包载及释放方面所起作用的探索 ...
曹莹
core
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Piezocatalytic technology utilizes mechanical strain or stress‐induced piezoelectric phenomena to produce robust internal electric fields, markedly improving the separation efficiency of e−‐h+ pairs. This method has emerged as a focal point in catalysis by removing reliance on conventional light or electrical energy via its mechanical‐to ...
Yue Zhou +5 more
wiley +1 more source
Dianci bileiqi, 2007 对直流盘形悬式绝缘子离子迁移过程进行了分析,认为离子迁移微观上表现为绝缘子内部某些金属正离子和自由电子的定向迁移。直流绝缘子离子迁移试验测量系统采用51系列单片机及其保护系统,运用C++ Builder计算机语言设计了一套实用软件,实现了离子迁移试验的自动控制、测量及52路微电流、52路体电阻、累积电荷的在线监测和相应的数据处理,提高了直流绝缘子离子迁移试验的准确度和工作效率。
危鹏 +4 more
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