Results 11 to 20 of about 13,524 (168)

Bidentate Coordination by Graphene Oxide‐Enhanced γ‐Cyclodextrin for Synergistic Solvation and Stabilization of the Zn Anode

open access: yesRare Metals, EarlyView.
ABSTRACT With the rapid development of the energy storage industry, aqueous zinc‐ion batteries (AZIBs) have attracted considerable attention in the field of energy storage because of their inherent advantages, thereby emerging as a promising research direction with significant potential.
Lingjiao Fu   +8 more
wiley   +1 more source

Molecular dynamics simulation of the effect of SDS / SDBS on the wettability of anthracite [PDF]

open access: yes, 2022
In order to explore the microscopic mechanism of anionic surfactants in coal mine dust removal. Using molecular dynamics simulation methods, two commonly used anionic surfactants, sodium dodecyl sulfate (SDS) and sodium dodecylbenzene sulfonate (SDBS ...
Guochao YAN   +5 more
core   +1 more source

基于改进层次聚类和GL-APSO算法的配电网动态重构

open access: yes智能科学与技术学报, 2022
针对含分布式电源(DG)的配电网动态重构问题,提出考虑配电网负荷需求与 DG 出力动态变化的配电网动态重构方案。首先,基于不同时段的负荷特性与最优网络结构的综合相似性,提出了一种改进层次聚类的时段划分方法。在此基础上,提出了遗传学习自适应粒子群优化算法,实现以网络损耗最小为优化目标的动态重构优化计算。针对基本粒子群算法中缺乏速度动态调节、易陷入局部最优等问题,提出基于粒子个体最优位置的遗传学习方案增加搜索多样性,提高算法的全局搜索能力,并引入自适应惯性权值和加速系数以满足不同时期的寻优要求。最后 ...
王云   +4 more
doaj   +1 more source

Molecular Dynamics Study of Starlike Polymer Brushes in θ-Solvent and Mixed Binary Brushes [PDF]

open access: yes, 2016
聚合物刷通常指的是紧密排列吸附在基面上的聚合物层,在功能性涂层、生物材料或胶质等方面有着重要应用,因此受到很多关注和研究。在过去的研究中,线性聚合物刷已经得到了深入全面的研究。近年来的研究热点逐渐转向具有更加复杂结构的聚合物刷,比如多分叉聚合物刷或是混合聚合物刷。这样复杂体系受到关注的原因有很多:多分叉聚合物刷具有更多的末端单体可以进行功能修饰,因此可以用来制成快速响应的智能表面涂层以及润滑涂层、防污涂层;更重要的是,多分叉聚合物刷体系广泛地存在于生物体系中;对于混合聚合物刷来说 ...
苏婵菲
core  

A Micro‐Nano Flower‐Like Na3V2(PO4)3@C Constructed by Polar‐Driven H‐Bond Engineering Toward High‐Rate Sodium Storage

open access: yesRare Metals, EarlyView.
ABSTRACT The polyanionic compound Na3V2(PO4)3 (NVP) has emerged as a competitive cathode material for sodium‐ion batteries (SIBs), owing to its high‐voltage redox activity (3.4 V vs. the Na+/Na reference couple) and NASICON‐type framework that enables superior ionic conductivity.
Xiaolei Wu   +5 more
wiley   +1 more source

Lipase-catalyzed synthesis of R-Poly (3-hydroxybutyrate) oligomer(脂肪酶催化合成聚R-3-羟基丁酸乙酯寡聚物研究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2018
聚R-3-羟基丁酸酯是一类具有重要生理作用的聚合物,其合成方法一直是手性聚合物合成领域的研究热点之一.在充分考察底物构型、溶剂等因素对酶促动力学拆分/聚合反应影响的基础上,结合过渡金属配合物对醇的原位外消旋化作用与酶促聚合反应,建立了一种绿色、高效的酶促动态动力学拆分/聚合一锅合成聚R-3-羟基丁酸酯的方法.通过该方法制备所得聚合物的分子量可以达到2.0×103 Da.通过改变聚合单体的光学纯度还可实现对聚合物分子量的调控,在不同光学纯度聚合单体的聚合反应中,聚合物的分子量可以较为均匀地分布在0.3 ...
XIABo(夏波), WUQi(吴起)
doaj   +1 more source

Dissolution‐Controlled Phase Separation of Cs+/Rb+ in High‐Salinity Brines via All‐Inorganic Prussian Blue Analogs

open access: yesRare Metals, EarlyView.
ABSTRACT The similar physicochemical properties of alkali metal elements make the co‐enrichment and precise separation of Cs+ and Rb+ in complex brine systems highly challenging. Here, an all‐inorganic strategy is proposed, which achieves efficient enrichment and precise separation of Cs+ and Rb+ in high‐salt systems by constructing Sr2+/Ba2+‐based ...
Kang Li, Ruixin Ma, Shina Li
wiley   +1 more source

Electrochemical and Raman Spectroscopy Studies of the Electric Double Layer at “Electrode/Ionic Liquid” Interface [PDF]

open access: yes, 2015
“电极/溶液”界面是各种电化学反应发生的场所,因此对界面结构和性质的研究不仅具有基础科学意义,而且能对实际应用起到指导作用。离子液体是一种新型溶剂,由于其具有蒸汽压几乎为零、导电性良好、电化学窗口宽等优点,离子液体被越来越多地应用于电化学以及其它领域,对“离子液体/电极”界面的研究也逐渐兴起,近十年来在理论和实验方面都有一定的进展,但仍需要更多的研究解决目前存在的问题:一方面,目前对离子液体界面的光谱表征集中在多晶或者粗糙电极上,电极表面结构的不确定性使结果分析和理论计算较为复杂 ...
张梦
core  

MXene‐Based Electromagnetic Attenuation Materials in Microwave and Terahertz Bands

open access: yesRare Metals, EarlyView.
ABSTRACT MXenes exhibit considerable potential for developing high‐performance electromagnetic (EM) shielding and absorption materials operating across microwave and terahertz frequencies, due to their tunable surface chemistry and exceptional charge carrier transport properties.
Guozheng Zhang   +9 more
wiley   +1 more source

Study on the interactions of typical PAHs and their metabolites with serum albumin and their controlling ways using cyclodextrins [PDF]

open access: yes, 2016
血清白蛋白是血浆中含量最丰富的运输蛋白,对血液中许多内、外源物质具有广普的结合能力,具有重要的生理功能。多环芳烃(PolycyclicAromaticHydrocarbons,PAHs)及其代谢物可与血清白蛋白形成稳定的加合物,由此随血液循环转运分布至各组织器官,引起毒性效应。该结合过程也可对血清白蛋白的结构和功能产生不利影响。因此,深入研究PAHs及其代谢物与血清白蛋白的结合作用,探究PAHs对血清白蛋白结构和功能的影响及寻求该结合作用的调控方式对了解PAHs在生物体内的赋存状态、毒性强度及致毒机制 ...
张静
core  

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