Results 31 to 40 of about 1,218,114 (140)
Bidirectional Interfacial Chemical Regulation Enables Durable Aqueous Zn‐I2 Batteries
ABSTRACT Aqueous Zn‐I2 batteries hold great promise for large‐scale energy storage, yet their practical deployment is hindered by coupled interfacial instabilities at both electrodes, where Zn‐anode parasitic reactions and cathodic polyiodide shuttle mutually aggravate each other.
Zimian Jia +8 more
wiley +1 more source
通过开展不同流量(20,30,40,50,60 L/min)条件下的室内模拟细沟水流冲刷试验,研究不同容重(1.06,1.15,1.18,1.21 g/cm3)对喀斯特黄壤分离能力(Dc)的影响,并建立土壤分离能力预测经验模型。结果表明:流量与容重均显著影响土壤分离能力,当容重为1.06 g/cm3时,Dc随流量呈幂函数递增,而在其他更高的容重条件下,Dc随流量呈线性增加;同一流量条件下,Dc随容重增加呈线性减小,且减少趋势在高流量条件下更为明显;幂函数方程可分别描述Dc与水流剪切力(τ)、水流功率(ω)
冯梦蝶 +7 more
doaj
Functionalized Silica‐Constructed Self‐Supporting Composite Separator for Lithium Metal Batteries
ABSTRACT Lithium metal batteries (LMBs) are considered highly promising next‐generation energy storage systems owing to their exceptionally high theoretical specific capacity and ultralow electrochemical potential. Nevertheless, the practical deployment of LMBs is still severely restricted by the uncontrollable formation and propagation of lithium ...
Li Chen +6 more
wiley +1 more source
为了提高电涌保护器中压敏电阻的耐电流冲击性能,生产上均采取压敏电阻的并联组合。在测试过程中发现,论文中的两种并联结构其8/20μs通流容量相差约20%。对并联组合后的压敏电阻劣化原因进行了分析,认为非对称并联结构的电流不均匀,其中一只压敏电阻承受的电流过大,导致性能迅速劣化、失效。通过加大电极片、连接片的宽度,降低阻抗,减小电流值的偏差,同时采用不同通流容量的压敏电阻进行配对并联,从而提高非对称并联结构的通流容量。
徐松 +4 more
doaj
海上风电经24 脉动二极管整流器送出系统的交流滤波器优化配置 [PDF]
整流站采用二极管整流器能够提升远距离大容量海上风电直流送出系统的经济性和可靠性。提出了基于24脉动二极管整流器的海上风电并网系统中交流滤波器的优化配置方法。首先,明确了基于24脉动二极管整流器的海上风电送出系统结构,阐述了24脉动二极管整流器的基本原理。然后,计算了24脉动二极管整流器的无功功率需求,对于24脉动二极管整流器,可以将设计复杂的交流滤波器简化为电容器,通过对有功功率变化范围内不同容量电容器滤波效果进行扫描,提出了综合考虑滤波效果和滤波器容量的交流滤波器无功容量优化方法。最后,在PSCAD ...
黄晓明 +7 more
doaj +1 more source
Identical Platform, Divergent Publics: Sweden and Finland During the 2022 NATO Crisis
ABSTRACT Digital platforms are often theorized as universal drivers of political polarization, yet empirical patterns remain inconsistent across countries. Leveraging the natural‐experiment logic of Sweden's and Finland's simultaneous 2022 NATO applications and the NATO–Turkey diplomatic crisis, this study examines how national political cultures ...
Selcen Ozturkcan
wiley +1 more source
ABSTRACT Tin‐based composite oxides typically undergo severe volume variations and exhibit poor intrinsic conductivities despite their high theoretical capacity as promising anode candidates for sodium‐ion batteries. This results in rapid structural degradation and capacity fading upon cycling.
Yongmei Sun +5 more
wiley +1 more source
ABSTRACT Ultrathin sodium (Na) metal anodes (< 40 μm) with superior electrochemical performance are essential in developing high‐energy‐density sodium metal batteries (SMBs). Nonetheless, Metallic Na's poor processability hinders its practical application.
Hao Yao +6 more
wiley +1 more source
ABSTRACT Aqueous zinc batteries hold great promise for large‐scale energy storage, yet their practical application is hindered by dendrite growth and interfacial side reactions on the zinc anode. Inspired by the industrially mature chromate passivation technology, this work reports an in situ construction of a chromium‐rich passivation layer (Zn@Cr) on
Long Huang +9 more
wiley +1 more source
本实用新型提供定容管活塞式油气水多相流量计的密度测量装置,包括:定容管,两端分别安装有换向阀,内部设置有沿轴向密封移动的活塞;磁致伸缩液位计,包括由定容管一端换向阀处插入定容管内的测量杆,和连接在测量杆上的浮球;密度计,包括与定容管测量段等长的密度管,和显示密度管测量结果的密度表,密度管的两端分别通过设置在定容管上的引压孔与定容管内部相通,连接后的密度管与定容管平行。本实用新型将密度计安装在定容管的外部,利用密度管直接与定容管内部相通,使两者的压力保持平衡,进而可以密度表实现精准测量 ...
何云腾 +4 more
core +2 more sources

