Results 11 to 20 of about 7,745 (157)

Rumour spread and control during the West African Ebola epidemic in Liberia

open access: yesDisasters, Volume 47, Issue 2, Page 346-365, April 2023., 2023
The severity of the 2014–15 West African Ebola epidemic in Liberia was coupled with widespread misunderstanding of the virus among citizens and the proliferation of rumours. Rumour control during outbreaks is imperative to reduce the public's fears about a disease.
Monique Mitchell Turner   +5 more
wiley   +1 more source

近期热点文章 [PDF]

open access: yes, 2017
High-Performance Rh2P Electrocatalyst for Efficient Water Splitting H. Duan, D. Li, Y. Tang, Y. He, S. Ji, R. Wang, H. Lv, P. P. Lopes, A. P. Paulikas, H. Li, S. X. Mao, C. Wang, N. M. Markovic, J. Li, V. R. Stamenkovic, Y. Li J. Am. Chem. Soc.
ZHUANG Lin, 庄林
core   +1 more source

The influence of the electrical boundary condition on domain structures and electrocaloric effect of PbTiO3 nanostructures [PDF]

open access: yes, 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
core   +1 more source

International clinical practice recommendations on the definition, diagnosis, assessment, intervention, and psychosocial aspects of developmental coordination disorder – Chinese (Mandarin) translation

open access: yesDevelopmental Medicine &Child Neurology, Volume 61, Issue 3, Page E1-E35, March 2019., 2019
目的 本国际临床指南由欧洲残疾儿童学会(the European Academy of Childhood Disability,EACD)牵头制定,旨在解决发育性协调障碍(developmental coordination disorder,DCD)的定义、诊断、评估、干预以及与社会心理方面的临床应用关键问题。 方法 本指南针对五个领域的关键问题,通过文献综述和专家团队的正式讨论达成共识。为保证指南的循证基础,以“机制”、“评估”和“干预”为检索词, 对2012年更新以来提出的最新建议以及新增的“社会心理问题”和“青少年/成人”为检索词进行检索。根据牛津大学循证医学中心证据等级 (证据水平 [level of evidence, LOE]1–4) 将结果进行分类,最终转化为指南建议。并由国际 ...
Jing Hua   +6 more
wiley   +1 more source

Ionic‐Liquid‐Assisted Synthesis of NiTe/CoTe Heterostructure With Te Vacancies in N, P, and F Co‐Doped Hollow Carbon Nanorods for Efficient Alkaline Hydrogen Evolution and High‐Performance Flexible Supercapacitors

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi   +7 more
wiley   +1 more source

Fabrication of Transition Metal Oxides / C Nanofibers Composite Materials by Electrostatic Spinning and Their Electrochemical Performance [PDF]

open access: yes, 2016
摘要 相对于传统能量存储设备,比如电容器和电池,超级电容器因具备高比电容、快速充放电、优异循环稳定性能和绿色环保等优点而备受关注。电极材料是超级电容器性能的主要决定因素,常用电极材料包括碳材料、过渡金属氧化物和导电聚合物等。由于电荷存储机理不同,在表面积相同的情况下,过渡金属氧化物的比电容明显高于碳材料,但是其存在导电能力不足、参与电荷存储的活性质量比小等缺点。过渡金属氧化物与碳材料复合可以很好的解决上述问题。 本文利用静电纺丝、水热反应和油浴等方法成功制备出形貌良好的Co3O4 ...
廖建军
core  

A Molten Salt Strategy to Convert Bulk Nb2O5 Into 2D Nonlayered Niobium Nitride Nanosheets for Superior Pseudocapacitive Storage

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Two‐dimensional (2D) nonlayered niobium nitrides have attracted considerable interest for electrochemical energy storage. However, the synthesis of these materials is hampered by their nonlayered crystal structures, which are characterized by strong three‐dimensional chemical bonding.
Rui Huo   +7 more
wiley   +1 more source

Design and Synthesis of Advanced Materials for Electrochemical Energy Storage [PDF]

open access: yes, 2016
在众多的储能系统中,锂离子电池和超级电容器具有很高的能量密度和功率密度,长循环寿命,安全以及环境兼容性好等优点,受到了来自科学界以及工业界的广泛关注。对于超级电容器和锂离子电池来说,它们的性能好坏与所使用的电极材料有很大关系。目前商业化的超级电容器电极材料和锂离子电池负极材料主要是碳材料,它的容量相对较低,已经不能满足人们日益增长的需求。因此科学工作者正在努力寻找开发新型的高性能电极材料来替代传统的碳材料。最近研究结果表明,过渡金属氧化物具有很高的理论比容量而且价格低廉 ...
蔡道平
core  

Double‐Hollow Porous Heterostructured CoP/Cu3P Microspheres for High‐Performance Asymmetric Supercapacitors

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT CoP has become a research hotspot for supercapacitor electrode materials because of its considerable theoretical capacitance and metalloid nature, but its commercial application remains hampered by structural instability and sluggish ion kinetics.
Gaoliang Wang   +8 more
wiley   +1 more source

Controlled Synthesis and Photocatalytical/Electrochemical Research of Transition Metal Sulfide and C3N4 Composites [PDF]

open access: yes, 2016
化学掺杂(复合)和微观形貌调控是改变材料结构特征,进而改善材料性能的两种主要手段。其中化学掺杂可以改变材料本身的价带和导带的位置,调整能带结构,并且掺杂的原子或复合的半导体化合物会与原材料产生一系列的互相激发反应,在材料表面或内部引起新的化学或物理反应,从而影响物质的性质;而微观形貌调控则是直接针对材料表面,控制合成不同的表面形貌,使其暴露出的活性位点发生改变,从而改变材料表面所带的基团及其比表面积,最终影响材料的光学、热学、电学、力学或化学特性。 在化学掺杂研究中 ...
王蓉蓉
core  

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